Regulation (EU) 2024/2847Working guide

The Cyber Resilience Act (Regulation (EU) 2024/2847) — a working guide

Mandatory cybersecurity requirements for almost every connected hardware and software product sold in the EU. Read here alongside the European Commission's application guidance of 27 July 2026.

In force 10 Dec 2024Full application 11 Dec 2027
What this is & how to read itThree registers

This page is a working overview of the EU Cyber Resilience Act — what the Regulation is, whom and what it covers, and what it requires in practice. It runs in fifteen short sections: orientation first (what it is, the key dates, scope, roles, open source), then the substance (classification, obligations, support periods, modifications, remote data processing, reporting), and finally how the CRA sits with neighbouring law, what non-compliance costs, what to do now, and the questions clients ask most. The navigation at the top jumps straight to any section.

Every section runs in the same order: the plain English meaning first, then a worked example, then the legal detail with the article references. Where the law reliably catches people out, there is a third block.

In plain English

What the rule actually means for a product team, without the statutory vocabulary.

Example

A concrete case, mostly drawn from the 67 worked examples in the Commission's guidance.

Common trap

Where the intuitive reading of the provision is the wrong one.

Citations appear inline like this: Art. 13(2) for the Regulation, Guidance §4.3 for the Commission's guidance of 27 July 2026 (C(2026) 5252, Annex).

Status of the guidance

What was released on 27 July 2026 is a Communication to the Commission approving the content of a draft Communication, with the guidance in its annex. On the Commission's usual practice, formal adoption and publication in all language versions follow that approval, so the wording may still move at the margins. The Commission's own announcement presents the guidance as published and usable now.

Either way it is non-binding. It records the Commission's interpretation, it does not replace the case-by-case assessment that each situation requires, and only the Court of Justice can give an authoritative interpretation of the CRA Guidance §1.2, point 8. Market surveillance authorities will nonetheless work from it, which is why it is worth reading closely.

Sources: Reg (EU) 2024/2847; C(2026) 5252Status 8 November 2026

01 / Orientation

WHATIT IS

In plain English

The CRA is product safety law for cybersecurity. It does the same job for connected products that CE marking already does for electrical safety: before you sell, you assess the risks, build to a set of essential requirements, document it, declare conformity and affix the CE mark. After you sell, you fix vulnerabilities for a declared period and report the serious ones. It regulates the product, not your company's IT.

The Regulation lays down horizontal cybersecurity requirements for products with digital elements placed on the EU market, covering both the moment of placing on the market and the product lifecycle Guidance §1.1, point 1. It is built on the New Legislative Framework, so the concepts of placing on the market, making available, substantial modification, conformity assessment modules and CE marking carry the meaning they have across EU product law, as set out in the Commission's Blue Guide.

Market surveillance sits with national authorities under Regulation (EU) 2019/1020 Art. 52. In Germany that role falls to the BSI: the designation has been notified to the Commission, and the implementing statute is currently before the Bundestag. The Commission and ENISA support application Guidance §1.1, point 3.

What the 27 July 2026 guidance adds

Nothing in the obligations or the dates changed. The guidance answers the questions the Commission was asked most, with particular attention to microenterprises and SMEs, as required by Art. 26. The practically significant clarifications are on standalone software, free and open-source software, substantial modification, support periods, remote data processing, and the point at which a manufacturer is deemed to have become aware of a vulnerability.

Art. 1, Art. 26; Reg (EU) 2019/1020Non-binding guidance

02 / The clock

KEYDATES

10 DEC 2024Entry into force. No operational duties yet.
11 JUN 2026Framework for notifying conformity assessment bodies applies.
11 SEP 2026Reporting of actively exploited vulnerabilities and severe incidents starts. Applies to all in-scope products, including those already on the market.
11 DEC 2027Full application. Essential requirements, conformity assessment, CE marking, support periods.
11 JUN 2028Existing EU type-examination certificates issued under other harmonisation law stop being usable for CRA purposes.
Common trap

The September 2026 reporting duty is often read as applying only to products that have been through CRA conformity assessment. It does not. It applies to products placed on the market before 11 December 2027 as well, and it continues after a product's support period has ended Art. 69(3) Guidance §9.1, point 210. Vulnerability handling under Annex I Part II does not apply to those legacy products, but reporting does.

Art. 69, Art. 71Reporting live since 11 Sep 2026

03 / Does it apply

SCOPE

In plain English

If you sell it, licence it, or give it away as part of a business, and it can exchange digital data with a device or a network, assume it is in scope until you can point to an exclusion. Software counts. Hardware counts. Components sold on their own count. A product does not need to touch the internet: a data connection to any device or network is enough.

A product with digital elements is a software or hardware product together with its remote data processing solutions, including software or hardware components placed on the market separately Art. 3(1). It falls in scope where its intended purpose or reasonably foreseeable use includes a direct or indirect, logical or physical data connection to a device or network Art. 2(1).

The data connection test

Scope is anchored in the capacity to exchange digital information, not in the presence of electronics. Switching an output on and off is not a data connection unless those states are deliberately encoded as information by a sender and can be decoded as information by a receiver. Where signals only trigger or power a function, there is no data connection and the product is outside Art. 2(1) Guidance §2.5.

Standalone software: when is it placed on the market

Software is not subject to physical production limits, so the guidance treats the manufacturer as having placed multiple copies of the same product on the market at the same moment: when the manufacturing phase is complete and the software is first supplied for distribution or use in the course of a commercial activity Art. 3(21)–(22) Guidance §2.1, points 13–14. Later downloads of that version are making available, not new placings.

Example

Version 1.0.0 is offered for download on 1 January 2028. Customer 1 buys that day, customer 2 on 15 January. Both copies were placed on the market on 1 January 2028. If an update to 1.0.1 on 15 January is not a substantial modification, copies of 1.0.1 are also treated as placed on the market on 1 January 2028 Guidance examples 1 and 2.

Two consequences are easy to miss. Variants that differ in components, configuration or enabled functionality, such as builds for different operating systems or bundles with different feature sets, are not copies of the same product. They are distinct products Guidance §2.1, point 14. And iterations that qualify as substantial modifications are newly placed on the market, which resets the analysis Guidance §4.4, point 116.

Software you run versus software you reach

For software to be a product with digital elements, it must be supplied to the user and executed on, or as part of, an electronic information system on the user's side Guidance §2.2, point 20.

DeliveryProduct with digital elements?Why
Mobile app installed from an app storeYesSupplied to the user, executes on the user's device
Desktop app built with web technologies, packaged for local installYesLocal execution, delivery technology is irrelevant
Web app or progressive web app used only through a browserNoExecutes remotely and is merely accessed
Locally installed client that depends on server-side processingYes, and that processing may be a remote data processing solutionSee section 10
Website that only presents informationNoIn scope only where it supports a function of a product
Common trap

"We are SaaS, so we are out of scope" is only half right. Pure browser-delivered SaaS is not a product with digital elements. But the moment you ship a desktop client, a mobile app, an agent, a browser extension or an on-premises component, that artefact is a product, and your back end may be pulled in as its remote data processing solution. NIS2 obligations on the cloud service sit alongside this, not instead of it Guidance §2.2 Recital 12.

Source code

Software means the part of an electronic information system consisting of computer code Art. 3(4), and that covers machine code and source code alike. Whether a given supply amounts to placing on the market is a separate question. Publishing free and open-source code in a public repository, sharing unfinished code for testing or review, and sample code in tutorials are generally not placings Guidance §2.3, point 23. Licensing source code to a customer as a product is Guidance example 7. Unfinished software such as alpha or beta versions may be made available, but only for the limited period required for testing and with a visible indication that it does not yet comply with this Regulation Art. 4(3) Recital 37.

Hardware plus software

Where a hardware product is designed to work with specific software from the same manufacturer in order to perform its functions, the two together constitute one product, even if the software arrives through a different channel later Guidance §2.4. A network printer and its drivers are one product. A fitness wearable and the app needed to display and configure it are one product.

Spare parts and legacy designs

Spare parts intended to replace identical components, manufactured to the same specifications, are excluded Art. 2(6). The guidance narrows this: the repair or maintenance purpose must be apparent from the supply context, for example by identifying the product or product family in the order, or by supplying through after-sales channels. Technical capability to serve as a replacement is not enough Guidance §4.2, point 97. Identity is judged on functional role and security-relevant characteristics, so a replacement with a different cryptographic implementation or secure boot mechanism is not identical and becomes a product in its own right.

Products designed before the CRA applies but placed on the market after 11 December 2027 do not need to be redesigned. The manufacturer runs a current risk assessment under Art. 13(2) and demonstrates that existing measures address the identified risks. Historical design and test documentation does not have to be recreated. Conformity assessment, the EU declaration of conformity and CE marking still apply Guidance §2.7.

Out of scope

Sector regimes take precedence for medical devices and in vitro diagnostics Art. 2(2)(a)–(b), vehicles covered by Regulation (EU) 2019/2144 Art. 2(2)(c), civil aviation products certified under Regulation (EU) 2018/1139 Art. 2(3), and marine equipment Art. 2(4). Most L-category vehicles under Regulation (EU) No 168/2013 were excluded separately, by delegated act — see section 12 for the carve-out that matters. Products developed exclusively for national security or defence purposes, or specifically designed to process classified information, are also excluded Art. 2(7). Non-commercial supply is outside the concept of placing on the market altogether.

Art. 2, Art. 3, Art. 4(3)Guidance §§2.1–2.7

04 / Roles

WHOIS WHO

In plain English

Your obligations depend on the role you occupy for a given product, and you can occupy different roles for different products. The heavy duties sit with the manufacturer. Two things promote you into that role without any change of intent: putting your name or trademark on someone else's product, and substantially modifying a product that is already on the market.

Manufacturer

Develops or has developed a product and markets it under its own name or trademark, in the course of a commercial activity Art. 3(13). Carries the essential requirements, risk assessment, due diligence, conformity assessment, documentation, support period and reporting duties Art. 13 Art. 14.

Importer / distributor

The importer places a product from a third country on the EU market; the distributor makes it available further down the chain Art. 3(16)–(17). Verification duties: CE marking, declaration of conformity, technical documentation, user information, and a duty to act on non-conformity Arts. 19–23. Substantially modify the product, or market it under your own name, and you become the manufacturer Art. 21.

Authorised representative

A manufacturer, typically one established outside the EU, may appoint an authorised representative in the Union by written mandate Art. 3(15) Art. 18. Appointment is optional, and the substantive manufacturer duties cannot be shifted into the mandate Art. 18(2). What the mandate must at least allow: keeping the declaration of conformity and technical documentation at the disposal of authorities for ten years or the support period, whichever is longer, providing conformity information on reasoned request, and cooperating on measures to eliminate risks.

Integrator

Assembles components, including modified ones, into a new product it places on the market itself. This is not substantial modification of someone else's product. The integrator is the manufacturer of the new product and complies for the product as a whole, but may rely on the component manufacturers' compliance work Guidance §4.4.1, point 120.

Open-source software steward

A legal person, other than a manufacturer, that systematically supports on a sustained basis the development of FOSS intended for commercial activities and ensures its viability Art. 3(14). Light regime: a cybersecurity policy, cooperation with authorities, and reporting scaled to the type of support provided Art. 24.

Contributor

Submits code but does not control releases, roadmap or governance. Out of scope, even with commit rights. Responsibility follows publication and control, not technical permissions Guidance §3.1, point 49.

Modifier

Anyone who substantially modifies a product Art. 3(30) and makes it available becomes its manufacturer Art. 22. Where the modification does not affect the cybersecurity of the product as a whole, the duties are limited to the modified part.

Professional user

Buys and deploys a product without resupplying it, putting its own name on it, or substantially modifying it. Not an economic operator Art. 3(12) for that purchase, so the CRA imposes no direct duties on you. What it gives you is leverage: CE marking, the EU declaration of conformity, the declared support period and the user information are all things to demand at procurement, and their absence is a supplier problem you can price.

Duties may still reach you as an entity under NIS2, DORA or sectoral law, and the declared support period end date should drive your own lifecycle planning.

Art. 3(12)–(17); Arts. 13, 14, 18–24Roles are per product

05 / Open source

FREE ANDOPEN SOURCE

In plain English

Publishing open source is not selling. What brings a project into the Regulation is monetisation by the person responsible for it, not the fact that companies use it or that money flows towards it. Donations, sponsorship and paid consultancy around a freely downloadable project generally do not make it commercial. Charging for the binary, gating updates, or monetising through the software does.

FOSS under the CRA has two cumulative conditions: a licence granting the full set of rights to access, use, modify and redistribute freely, and source code that is openly shared, meaning publicly available rather than provided to paying customers or a restricted group Art. 3(48) Guidance §3, points 44–46.

The two questions

  1. Is the project under your responsibility?Responsibility lies with those who publish it and exercise primary control over development, releases and distribution decisions. Contributors are not caught, and commit access alone does not create responsibility Guidance §3.1.
  2. Do you supply it in the course of a commercial activity?If yes, it is placed on the market and you are its manufacturer. If no, and you are a legal person providing sustained support to a project intended for commercial activities, you are its steward. If no and you are a natural person, the CRA does not apply Guidance §3.2.

What counts as monetisation

ArrangementPlaced on the marketBasis
Charging for pre-compiled binariesYesCharging a price for the software itself
Paid enterprise edition alongside a free community versionYes for the paid edition. The community version is not placed on the market, and a legal person publishing it is its stewardGuidance §3.2.1, points 52–53
Free app that monetises other goods or services through itYesMarketplace commissions, ads, paid VPN servers
Use conditional on personal data processing beyond security, compatibility or interoperabilityYesGuidance example 16
Optional paid consultancy, training or deployment services around a freely downloadable projectNoAccess to the software is not conditioned on payment Guidance §3.2.3
Donations, even exceeding development costsNo, as a ruleDonations fluctuate. A link to a donation platform is not an intention to profit Recital 15
Binaries or security updates only for donorsYesDonation is de facto a price Guidance examples 21 and 22
Development funded by a company, output published freelyNoHow development was financed is not relevant Recital 18
Not-for-profit entity, all earnings after costs used for not-for-profit objectivesNo, even where monetised. The entity is a stewardGuidance §3.2.6, example 24
Example

A natural person publishes a FOSS tool and offers technical assistance bundled with access. If the price only recovers actual costs, which the guidance reads as including the maintainer's reasonable living expenses, this is not a commercial activity and the tool is not placed on the market Guidance §3.2.3, point 58.

Common trap

Integrating a FOSS component into your commercial product changes nothing about that component's status, and it does not make you responsible for its compliance. What it does create for you is a due diligence duty on the component Art. 13(5), a duty to report vulnerabilities upstream and share security fixes Art. 13(6), and full responsibility for your own product as a whole Guidance §3.4.

Steward obligations scale with the support given

All stewards need a cybersecurity policy and must cooperate with market surveillance authorities Art. 24(1)–(2). Beyond that, the reporting duties of Art. 14 apply according to what the steward actually does Art. 24(3): non-technical support such as branding, governance or events brings no reporting duty, though the steward should pass information to maintainers; hosting the underlying IT infrastructure brings severe incident reporting for that infrastructure; contributing engineering resources brings reporting of actively exploited vulnerabilities Guidance §3.3.1, points 80–82.

Art. 3(14), Art. 3(48), Art. 24; recitals 15, 18, 19Guidance §3

06 / Classification

HOWYOU PROVE IT

In plain English

Most products can be self-assessed. A defined list of security-critical categories cannot, or can only be self-assessed if you apply a harmonised standard in full. Which bucket you are in depends on the product's core functionality, meaning the main features without which it could not meet its intended purpose. Not on everything it happens to be able to do.

ClassSourceConformity assessment
DefaultEverything not in Annex III or IVInternal control, module A. Self-assessment Art. 32(1)
Important, class IAnnex III, part I. Operating systems, browsers, password managers, antivirus, VPNs, network management systems, SIEM, boot managers, identity and privileged access management, routers, modems and switches, smart home virtual assistants and smart home security products, connected toys with social or tracking features, health-monitoring wearables, and similarInternal control is available only where a harmonised standard, common specification or certification scheme at assurance level at least substantial has been applied in full. Otherwise third party Art. 32(2)
Important, class IIAnnex III, part II. Hypervisors, container runtimes, firewalls, intrusion detection and prevention, tamper-resistant microprocessors and microcontrollersThird party required: module B+C, module H, or a European cybersecurity certification scheme Art. 32(3)
CriticalAnnex IV. Hardware devices with security boxes, smart meter gateways, smartcards and similar secure elementsThird party, and the Commission may require European cybersecurity certification Art. 8

The technical descriptions of the important and critical categories are set out in Commission Implementing Regulation (EU) 2025/2392. FOSS that qualifies as an important product of class I or II and is placed on the market may use the default internal control procedure — on one condition: the technical documentation must be made available to the public when the product is placed on the market Art. 32(5).

Core functionality

A product may have only one core functionality for classification purposes, and it must be identified in the technical documentation Guidance §6.1, point 144. Additional functions do not change the classification. Neither does integrating an important or critical product as a component: a smartphone that runs an operating system does not thereby have the core functionality of an operating system Art. 7(1) Guidance example 58.

Where a product substantially exceeds or falls substantially short of a category, it is outside it. SOAR software generally exceeds SIEM because incident response is core to its capabilities. A log collection and visualisation tool generally falls short of SIEM because it does not correlate data or produce actionable security insights Guidance examples 59 and 60. The assessment is objective and technical. Marketing language that does not reflect the actual characteristics does not control it, and misrepresenting core functionality to escape a stricter regime is not available Guidance §6.1, point 143.

Example

A security suite ships as one product but the SIEM, the intrusion detection system and the analytics module are also sold as separate subscriptions. Each module is then a distinct product classified on its own core functionality: class I, class II and default respectively Guidance example 61. Modules supplied only as part of the integrated product are assessed at the level of that product.

Harmonised standards and presumption of conformity

Applying a harmonised standard whose reference has been published in the Official Journal gives a presumption of conformity for the essential requirements the standard covers Art. 27(1). The same applies to common specifications Art. 27(5) and to certificates under a European cybersecurity certification scheme where specified by delegated act Art. 27(8)–(9).

Two limits matter in practice. The presumption reaches only as far as the standard reaches, so ancillary functionality outside the standard's scope carries no presumption and the manufacturer must document the additional measures it took Guidance §6.3. And the standards are not there yet: work under standardisation request M/606 is ongoing and, until references are cited in the Official Journal, conformity has to be demonstrated directly against Annex I.

Support for smaller manufacturers

Microenterprises and small enterprises may provide all elements of the Annex VII technical documentation in a simplified format, which the Commission is to specify by implementing act Art. 33(5). Member States are directed to organise awareness-raising and training, run dedicated communication channels for advice, and support testing and conformity assessment activities Art. 33(1), and may establish cyber resilience regulatory sandboxes: controlled environments for testing innovative products against the Regulation before placing them on the market, with access for start-ups expressly facilitated Art. 33(2).

Arts. 7, 8, 27, 32, 33; Annexes III, IV; Impl. Reg. 2025/2392Standards pending

07 / Obligations

WHAT YOUMUST DO

In plain English

Two blocks of substance. Before you ship, the product has to be built securely and shipped with no known exploitable vulnerabilities. After you ship, you have to run a real vulnerability handling process for the whole support period, including an SBOM, coordinated disclosure, and free security updates delivered separately from feature updates where that is technically feasible.

Annex I, Part I: product requirements

The chapeau requires design, development and production ensuring an appropriate level of cybersecurity based on the risks. The specific requirements apply on the basis of the risk assessment, so not all of them apply to every product:

  • Made available without known exploitable vulnerabilities
  • Secure by default configuration, with the ability to reset to that state
  • Vulnerabilities addressable through security updates, including automatic updates with an opt-out where applicable
  • Protection from unauthorised access through appropriate control mechanisms, and reporting of possible unauthorised access
  • Confidentiality of data at rest and in transit, using state-of-the-art encryption where relevant
  • Integrity of data, commands, configuration and program, with detection of unauthorised modification
  • Data minimisation: only data adequate, relevant and limited to what is necessary
  • Availability of essential and basic functions, including resilience against denial of service
  • Minimising the product's own negative effect on the availability of other devices and networks
  • Limiting attack surfaces, including external interfaces
  • Reducing the impact of incidents through exploitation mitigation techniques
  • Recording and monitoring of security-relevant internal activity, with an opt-out
  • Secure and easy permanent deletion of all data and settings, and secure transfer where applicable

The chapeau requirement is a catch-all. Where the other requirements already treat every identified risk, it is satisfied. Where the risk assessment surfaces risks they do not cover, further product-level measures are needed Guidance §7.2, point 166.

Annex I, Part II: vulnerability handling

  • Identify and document vulnerabilities and components, including an SBOM Art. 3(39) in a commonly used machine-readable format covering at least the top-level dependencies
  • Address and remediate vulnerabilities without delay, providing security updates separately from functionality updates where technically feasible
  • Apply effective and regular tests and reviews
  • Publicly disclose information about fixed vulnerabilities once an update is available
  • Maintain and enforce a coordinated vulnerability disclosure policy
  • Facilitate information sharing about potential vulnerabilities, including a contact address
  • Provide mechanisms to distribute updates securely, with automatic updates and user notification where applicable
  • Disseminate patches without delay and, unless otherwise agreed for tailor-made products, free of charge with advisory messages

"Regular tests" does not mean repeating an unchanged campaign at fixed intervals. It means regularly reviewing whether new threats or newly discovered vulnerabilities require the test set to change, and executing accordingly. Where the review finds nothing new, no additional tests need to be devised Guidance §9.2.3.

Risk assessment and due diligence: two separate duties

Risk assessment Art. 13(2)–(3)

Covers the product, including risks that originate outside it: external networks, back-end systems, the operating environment. You are not required to govern that environment. You are required to identify those risks and mitigate them through the design of your product, for example by authenticating remote commands, verifying response integrity, or ensuring an outage does not put the product into an insecure state.

The assessment is documented in the technical documentation and kept current throughout the support period.

Due diligence Art. 13(5)

Covers third-party components integrated into the product. Determine what the product needs from the component in security terms, then verify in a risk-based way that the component delivers it, using specifications, security documentation, conformity evidence or your own testing.

Plus upstream duties: report vulnerabilities in the version you integrate to the component maintainer, and share security fixes you develop Art. 13(6).

Common trap

Residual risk is not something you accept against your own internal risk appetite. The benchmark is whether the product ensures an appropriate level of cybersecurity given its intended purpose and reasonably foreseeable use. Internal risk tolerance, commercial strategy and cost do not determine whether a risk has been addressed, and risk cannot be transferred to users or third parties to compensate for design shortcomings Guidance §7.1, points 158 and 161.

Two practical reliefs. You may restrict the intended purpose, for instance to trusted environments, and inform users accordingly, provided the restriction is real and documented Guidance example 66. And where variants share architecture, security-relevant design, intended purpose and risk profile, one risk assessment, one set of technical documentation, one conformity assessment and one declaration of conformity can cover the family, as long as the declaration identifies the variants Guidance §7.4.

Paperwork that has to exist

  • Technical documentation, drawn up before placing on the market and kept up to date Art. 31, content per Annex VII
  • EU declaration of conformity Art. 28, content per Annex V
  • CE marking Art. 30
  • Information and instructions to users, including the support period end date Art. 13(18)–(19), content per Annex II
  • A single point of contact for vulnerability reports, and a coordinated vulnerability disclosure policy

Who owns what

CRA programmes stall on ownership rather than on interpretation. The evidence below is what an authority, a customer's procurement team or an acquirer will ask to see. The third column is the allocation that works in most organisations, and the point of naming it is that no single function can produce this file alone.

Evidence areaWhat you must be able to produceOwner
Scope and classificationProduct and variant register, intended purpose, data connection and remote service map, economic operator role per product, exclusion analysis, Annex III or IV classification with the core functionality reasoningLegal and product
Risk assessmentThreats, exposure, intended and reasonably foreseeable use, external dependencies, treatment decisions, residual risk reasoning, and evidence that the assessment is current Art. 13(2)–(3)Product security
Essential requirementsRequirement-to-control matrix against Annex I Part I, secure defaults, access control, confidentiality and integrity measures, logging, attack surface reduction, test and review recordsEngineering and security
DependenciesSBOM in a commonly used machine-readable format covering at least top-level dependencies, component due diligence records, vulnerability monitoring, upstream reporting and security fix workflow Art. 13(5)–(6)Engineering and procurement
Conformity fileAnnex VII technical documentation, conformity assessment records, standards or certificates relied on, EU declaration of conformity, CE evidence, user information and instructionsQuality and legal
Support and incidentsDeclared support period with its reasoning Art. 13(8), security update channel, coordinated vulnerability disclosure policy, incident response runbook and reporting access Art. 14 — plus evidence of a rehearsal, which is good practice rather than a statutory requirementSecurity operations and support
Change controlSubstantial modification assessments per release, with the four-question reasoning recorded and the decision datedProduct and legal
Art. 13; Annexes I, II, V, VII; Arts. 28, 30, 31Documentation is the deliverable

08 / Support period

HOW LONGYOU OWE IT

In plain English

You decide how long you will handle vulnerabilities, and you have to say so at the point of purchase. The number follows how long the product is realistically going to be in use. Five years is the floor for products used that long or longer, not the answer.

The support period is the period during which the manufacturer must ensure that vulnerabilities in the product are handled effectively Art. 3(20). It reflects the expected use time and is set against the criteria in Art. 13(8): reasonable user expectations, the nature of the product including its intended purpose, and relevant Union law on product lifetimes. Additional criteria include support periods offered by comparable products, availability of the operating environment, the support periods of third-party components providing core functions, and guidance from the CRA administrative cooperation group.

It must be at least five years, unless the product is expected to be in use for less, in which case it matches the expected use time. Products reasonably expected to be in use for longer than five years should have longer support periods. Five years is a safeguard, not a default Guidance §5, point 126.

The end date, at least month and year, must be stated at the time of purchase, and where technically feasible the product must notify users when the period expires Art. 13(19).

Example

An enterprise software vendor ships substantially modified versions every few months. Each version needs its own declared support period. But the vendor may rely on Art. 13(10) to address and remediate vulnerabilities only in the version last placed on the market, provided users can upgrade free of charge and without additional costs Guidance example 53.

"Additional costs" is read practically. It does not cover the ordinary effort of applying updates: personnel time, routine testing, configuration adjustments, or upgrading underlying dependencies to deal with end-of-life components. It does cover mandatory new hardware, infrastructure replacement, or fundamental changes to the operating environment Guidance §5, point 130. Where support for earlier versions is discontinued, users who have not upgraded should be informed if that is technically feasible.

Common trap

A substantial modification does not reset the support period. It triggers a reassessment against the Art. 13(8) criteria. Where the modification does not affect what determined the expected use time in the first place, typically hardware durability and user expectations, the support period simply runs to the end of the original expected use time, even if less than five years remain Guidance §5.1. It is recalculated only where the modification changes those factors, for example replacing a controller's computing platform with one designed for a longer operational life.

Art. 13(8), (10), (19); recital 60Guidance §5

09 / Change control

SUBSTANTIALMODIFICATION

In plain English

Ship a change that raises the cybersecurity risk in a way your risk assessment never contemplated, or that changes what the product is for, and the law treats it as a new product going on the market. The size of the code change is irrelevant. What matters is whether the risk picture moved.

A substantial modification is a change after placing on the market that affects compliance with the essential requirements in Annex I Part I, or that changes the intended purpose for which the product was assessed Art. 3(30). A product is substantially modified where a change alters the level of cybersecurity risk and that altered or additional risk was not considered in the manufacturer's risk assessment Recital 39.

Four questions for a software update

The guidance offers a non-exhaustive test. Does the update Guidance §4.3, point 110:

  1. Introduce new threat vectors, such as additional interfaces, communication channels, execution environments or external dependencies?
  2. Enable new attack scenarios?
  3. Change the likelihood of scenarios already identified, by lowering the effort to exploit them, increasing exposure to untrusted actors, or weakening safeguards?
  4. Change their potential impact, including the scope of affected data or functions, the severity of consequences, or the ability to detect, contain or recover?

Four times no, with the assumptions and mitigations in the risk assessment still valid, points away from a substantial modification.

ChangeSubstantial?Reason
Monitoring dashboard gains the ability to control and restart machinesYesIntended purpose shifts from situational awareness to operational control
Group chat and moderation tools added to a messaging app, both foreseen and assessed at design timeNoWithin the original intended purpose and risk assessment
"Remember me" persistent login storing tokens locallyYesToken theft, unauthorised access and session hijacking were not assessed. Scale of the change is irrelevant
New diagnostics logging that stores sensitive operational data unencryptedYesNew data exposure risk, previously unassessed
Fixing an input validation error or an authentication bypassNoSecurity updates reduce risk. They are generally not substantial modifications even when technically significant
Tightening firewall rules, disabling unused ports, making MFA mandatoryNoHardening within the existing purpose
Security update that removes local file encryption and routes files to a remote serviceYesIntended purpose fundamentally altered despite the security motive
Security update replacing internal key management with a third-party key management serviceYesDependencies and data flows materially altered, new external interfaces

What follows

A substantially modified product made available on the market is a new product, and making it available is a new placing on the market. This holds whether the original manufacturer or someone else made the change Guidance §4.4, point 116.

Proportionality applies to the consequences. Where the modification does not negatively affect the cybersecurity of the product as a whole, the modifier's duties under Arts. 13 and 14 are limited to the modified part, and the original manufacturer's duties continue for the rest Art. 22. Where it does affect the product as a whole, the modifier takes on the full set for the whole product. The original manufacturer may reuse existing documentation and tests for unaffected aspects, and a notified body should focus on the modified parts Guidance §4.4.2.

Legacy products are covered too: substantially modifying a product placed on the market before 11 December 2027, then placing it on the market, makes you its manufacturer Art. 69(2). But that does not by itself require bringing the entire legacy product into full compliance, unless the modification affects the cybersecurity of the product as a whole.

Refurbishment, maintenance and repair do not by themselves amount to substantial modification. Replacing a defective part with a better-performing one is not a substantial modification unless it affects compliance with the essential requirements or changes the intended purpose covered by the risk assessment Recital 42 Guidance §4.1. A major change made by a third-party cloud provider is not a substantial modification of your product either, since it is outside your responsibility, but it should trigger a review of your risk assessment Guidance §8.2, point 208.

Art. 3(30), Arts. 21, 22, 69(2); recitals 39, 41, 42Guidance §4

10 / Back end

REMOTE DATAPROCESSING

In plain English

Part of your cloud can become part of your product. If a component you built runs remotely and the product cannot perform one of its functions without it, that component is inside the CRA perimeter and goes through conformity assessment with the product. Cloud you merely rent, and generic SaaS you merely integrate, stays outside the perimeter but still has to be risk-assessed and diligenced.

Remote data processing means data processing at a distance for which the software is designed and developed by the manufacturer, or under its responsibility, and the absence of which would prevent the product from performing one of its functions Art. 3(2). Only the software elements are captured, not the underlying hardware Guidance §8, point 180.

Three questions

  1. Is any part of the processing at a distance?Typically outside the user's environment. On-premises servers of the manufacturer and private cloud qualify just as much as public cloud, and edge processing close to the device counts. If no, it is not remote data processing, though relevant risks still enter the risk assessment.
  2. Would its absence prevent the product from performing one of its functions?Not limited to core functionality or intended purpose. Sending commands, synchronising files, onboarding, configuration, automated update distribution and identity and access management all qualify. Telemetry analysed purely for statistics or future product development does not. If no, treat it as an external dependency and mitigate through product-level controls.
  3. Was the software designed and developed by you or under your responsibility?Tailor-made for you, built by or on behalf of you to your designs and specifications. Licensing an existing product a provider offers to its customers generally is not. If no, treat it as a third-party component: assess the integration risks, mitigate at product level, and exercise due diligence.

Three yes answers means the software is a remote data processing solution, part of the product, and inside the risk assessment, the essential requirements, the conformity assessment and the lifecycle duties. Who operates it is not decisive: design and development are what count Guidance §8.1.3, point 196.

Cloud modelYour layerTreatment
Third-party IaaSOperating systems and applications you deployYour software can be a remote data processing solution. The hypervisor and physical layer are not
Third-party PaaSYour application on the provider's runtimeYour application can be a remote data processing solution. The execution environment is not
Third-party SaaSConfiguration onlyNot a remote data processing solution. Treat as a third-party component: risk assessment plus due diligence
Example

A banking app authenticates through a self-built banking interface, which then talks to the account management and ledger systems. The banking interface is a remote data processing solution. The ledger and account management systems are not, because the app does not interact with them directly, but they remain external dependencies whose compromise could alter what the app shows. That risk is mitigated at product level through strong authentication of back-end interfaces, integrity protection of transaction data, and verification of responses. A third-party SaaS support chat inside the same app is not a remote data processing solution, and is handled as a component with isolation, data flow controls and content validation Guidance §8.3.1.

Common trap

The perimeter is narrower than most architecture diagrams. It reaches the software modules responsible for the product's functionality and the interfaces those modules use with external services. Back-end systems performing subsequent processing that the product does not directly interact with are outside it Guidance §8.2, point 205. Your HR systems, payroll, CRM, CI/CD pipelines, and penetration testing infrastructure are not part of the product Guidance §8, point 182. A cellular network, an ethernet cable or a router is a communication enabler, not remote data processing, and carries no due diligence duty towards the network operator Guidance §8.3.5.

Where you rely on third-party remote services, evidence you can reuse in your own assessment includes compliance evidence under Commission Implementing Regulation (EU) 2024/2690 for NIS2, evidence under DORA, statements or certificates under a European cybersecurity certification scheme, and ISO/IEC 27001:2022 or ISO/IEC 27017:2015 conformity Guidance §8.2, point 207. Security guarantees in service level agreements, including on vulnerability handling and notification of changes, are the practical instrument.

Art. 3(1), Art. 3(2); recitals 11, 12Guidance §8

11 / Live from 11 Sep 2026

REPORTING

In plain English

Two triggers: a vulnerability in your product that is actually being exploited, and a severe incident affecting your product's security. Both go simultaneously to ENISA and to the CSIRT designated as coordinator, on a staged clock starting when you become aware. Then you tell affected users.

Manufacturers must notify actively exploited vulnerabilities Art. 3(42) and severe incidents having an impact on the security of the product Art. 3(44) Art. 14(5), simultaneously to the coordinating CSIRT and ENISA Art. 14(1) and (3). Applies from 11 September 2026, to all in-scope products including those placed on the market earlier, and it continues after the support period ends Art. 69(3).

24hEarly warning, limited information, without undue delay after becoming aware
72hVulnerability or incident notification with additional information
14dFinal report on an actively exploited vulnerability, after a corrective or mitigating measure is available
1mFinal report on a severe incident, after the 72-hour notification

When does the clock start

Awareness arises when, after an immediate initial assessment of a suspicious event or a third-party report, you have a reasonable degree of certainty that a vulnerability in your product is being actively exploited, or that a severe incident has occurred and compromised your product's security Guidance §9.1, point 213. The guidance deliberately aligns this with the NIS2 implementing regulation and with the EDPB's Guidelines 9/2022 on personal data breach notification, so a single internal triage process can serve all three regimes. The emphasis is on prompt initial assessment, not on delaying certainty.

Example

You knew about a vulnerability before 11 September 2026 but not about any exploitation. Exploitation happens, or you learn of it, in October. It becomes an actively exploited vulnerability subject to reporting. If you already knew of the active exploitation before 11 September 2026, there is no retroactive reporting duty Guidance §9.1, point 217.

Common trap

A known-vulnerable third-party component in your product is not automatically reportable. Reporting is triggered by active exploitation in your product. If the vulnerable code is unreachable in your build, or has not been exploited there, mandatory reporting is not triggered, though voluntary reporting under Art. 15 stays open. Vulnerability handling under Annex I Part II and upstream reporting under Art. 13(6) still apply Guidance §9.1, point 218.

Informing users

After becoming aware, manufacturers must inform impacted users and, where appropriate, all users Art. 14(8). This is risk-based. It does not mean indiscriminate publication, and for products used in sensitive or essential environments, publishing technical detail early can itself increase risk. Broader disclosure becomes appropriate once the vulnerability has been addressed, and Annex I Part II requires public disclosure of fixed vulnerabilities once a security update is available Guidance §9.1, points 220–221. Where a manufacturer fails to inform users in time, the CSIRT that received the notification may do so.

Upstream reporting

Report vulnerabilities in the component version you integrate to the person or entity maintaining it, following their disclosure policy and channels Art. 13(6). No duty where you can confirm the maintainer already knows, where the component is unmaintained, or where you no longer rely on that maintainer. Check public vulnerability databases, advisories and issue trackers first to avoid duplicate reports. Fixes should be shared in a machine-readable, verifiable form, and for FOSS components under a licence compatible with the component's own Guidance §9.2.1. You are not required to get your fix accepted, and you are not required to accept theirs.

Arts. 13(6), 14, 15, 69(3)Single reporting platform at ENISA

12 / Neighbouring law

HOW ITFITS

In plain English

The CRA regulates the product. NIS2 and DORA regulate the organisation running services. GDPR regulates the personal data. They overlap in evidence, not in obligation, and one certificate rarely discharges another regime.

Vehicles

Products covered by Regulation (EU) 2019/2144 are outside the CRA Art. 2(2)(c), and L-category vehicles under Regulation (EU) No 168/2013 were excluded by Delegated Regulation (EU) 2025/1535 — with one carve-out: L1e vehicles designed to pedal, in essence pedal-assist e-bikes, stay inside the CRA. Components are outside only where designed and constructed exclusively for integration into those vehicles. Selling a generic component through channels open to the general public brings it back in, whatever the stated intended use Guidance §9.3.1.

Radio Equipment Directive

The RED cybersecurity requirements are repealed with effect from 11 December 2027 by Delegated Regulation (EU) 2026/339, when the CRA takes over. An EU type-examination certificate under Delegated Regulation (EU) 2022/30 remains valid until 11 June 2028 and can be relied on for the cybersecurity risks it actually covers, such as network protection, personal data and privacy, and fraud prevention. It does not demonstrate CRA compliance as such: vulnerability handling, data minimisation and attack surface reduction typically sit outside it Art. 69(1).

Machinery Regulation

Regulation (EU) 2023/1230 applies fully from 14 January 2027. Certificates covering the cyber-safety requirements in sections 1.1.9 and 1.2.1 of its Annex III remain usable for those risks until 11 June 2028. Everything else the CRA risk assessment identifies stays your responsibility Guidance §9.3.2.

NIS2 and DORA

Directive (EU) 2022/2555 and Regulation (EU) 2022/2554 regulate the entity and its services, not the product. For CRA purposes their compliance evidence is reusable when you assess third-party remote services, and cloud services you consume remain squarely within NIS2 Recital 12 Guidance §8.2.

AI Act

Regulation (EU) 2024/1689 and the CRA can apply to the same product. The Commission has flagged further guidance on the interplay Guidance §1.2, point 9. Until then, run both classifications separately: high-risk status under the AI Act and important or critical status under the CRA are independent questions.

Product liability

Under Directive (EU) 2024/2853 software is a product, but mere source code is not, so placing code on the market does not by itself found liability under that Directive. National tort law is unaffected Guidance §2.3, footnote 9.

Art. 2(2), Art. 69(1)Guidance §9.3

13 / Enforcement

WHAT ITCOSTS

In plain English

Three fine tiers, set by reference to the higher of a fixed amount and a percentage of worldwide turnover. Fines are not the only lever: authorities can order corrective action, restrict availability, or require withdrawal and recall.

TierCeilingCovers
Top Art. 64(2)EUR 15 000 000 or 2.5% of total worldwide annual turnover, whichever is higherThe essential requirements in Annex I, and the manufacturer obligations in Articles 13 and 14
Second Art. 64(3)EUR 10 000 000 or 2%Importer and distributor duties, the EU declaration of conformity, CE marking, technical documentation, conformity assessment procedures, and notified body provisions
Third Art. 64(4)EUR 5 000 000 or 1%Incorrect, incomplete or misleading information supplied to notified bodies or market surveillance authorities

Two derogations are worth knowing Art. 64(10): administrative fines do not apply to open-source software stewards for any infringement, and micro and small enterprises are not fined for missing the early warning deadlines in Art. 14(2)(a) and Art. 14(4)(a). The steward carve-out removes the fine, not the obligation. A drafting quirk for the attentive: the derogation textually refers to paragraphs 3 to 9, while the fine ceiling for Article 14 breaches sits in paragraph 2 — the carve-outs are generally read in line with their evident purpose, as reaching those fines.

Fines are set by national market surveillance authorities taking account of the nature, gravity and duration of the infringement, prior infringements, and the size and market share of the operator. In Germany that will be the BSI: the designation has been notified to the Commission, and the implementing statute is currently before the Bundestag.

Art. 64; Reg (EU) 2019/1020Recall powers sit alongside fines

14 / Sequencing

WHAT TODO NOW

Now: reporting is live

Make sure you can report today

  1. Decide who reports. Name the accountable role, the deputy, and the out-of-hours path. The 24-hour clock does not pause for holidays.
  2. Write the awareness trigger down. Define what "reasonable degree of certainty" means in your triage, and align it with your NIS2 and GDPR breach procedures so one intake feeds all three.
  3. Identify your reporting channels. ENISA's single reporting platform has been operational since 11 September 2026, initially for mandatory Art. 14 notifications only; voluntary Art. 15 notifications follow later. Confirm the coordinating CSIRT for your Member State and make sure you can use the platform, because the 24-hour clock will not wait for it.
  4. Inventory in-scope products already on the market, including legacy ones. Reporting applies to them even though vulnerability handling does not.
  5. Draft the user notification templates and decide who signs them off.
  6. Set up monitoring for exploitation signals: CISA KEV, the EU vulnerability database, vendor advisories, your own telemetry.

Through 2026 and 2027

  1. Classify every product: default, important class I, important class II, or critical. Record the core functionality determination and the reasoning.
  2. Draw the product boundary, including remote data processing solutions. Run the three questions per back-end component and document the answers.
  3. Run the risk assessments. Group product families where architecture, security-relevant design, intended purpose and risk profile genuinely coincide.
  4. Set support periods per product and check they are defensible against expected use time. Get them into the sales channel, the packaging and the contracts.
  5. Build the SBOM pipeline and the coordinated vulnerability disclosure policy. Publish a contact address.
  6. Fix supplier contracts: component security specifications, vulnerability notification, support period alignment, change notification from cloud providers, service level agreement security terms.
  7. Define your substantial modification gate. A release checklist against the four questions, with the decision recorded, is the cheapest evidence you will ever produce.
  8. Book notified body capacity early if you have class II or critical products. Capacity will be scarce in 2027.

Before 11 December 2027

  1. Complete conformity assessment, technical documentation per Annex VII, EU declaration of conformity per Annex V, CE marking, and user information per Annex II.
  2. Check whether existing RED or Machinery Regulation certificates cover part of your evidence, and plan for their CRA usability ending on 11 June 2028.
Sequenced against Arts. 13, 14, 32, 69Reporting obligations apply since 11 Sep 2026

15 / Questions

WHATCLIENTS ASK

Does the CRA apply to our SaaS?

Not to the browser-delivered service itself. A web application accessed only through a browser is not a product with digital elements, and neither is a website that merely presents information Guidance §2.2. Three things change that answer: shipping any locally installed component, such as a desktop client, mobile app, agent or browser extension; server-side software you built that the product needs to perform a function, which becomes a remote data processing solution and part of the product; and NIS2, which regulates the cloud service in parallel and is unaffected by the CRA analysis.

We only use open source. Are we exempt?

There is no blanket exemption, and the question splits three ways. If you publish and control a project without monetising it, you are outside the Regulation as a natural person, or a steward under Art. 24 as a legal person. If you contribute to a project you do not control, the CRA does not apply to you. If you integrate FOSS into a product you sell, you are the manufacturer of that product, with due diligence on the components Art. 13(5) and upstream reporting duties Art. 13(6). The component's own status does not change because you used it.

Does every update create a new product?

No. Only a change that affects compliance with Annex I Part I, or that changes the assessed intended purpose Art. 3(30). Security updates generally do not, even substantial ones. What matters is the risk delta against your existing risk assessment, and the cheapest way to be able to prove it later is a short recorded assessment at each release.

Can we just declare five years of support?

Only if five years genuinely matches the expected use time. Five years is a floor for products used that long or longer, and products reasonably expected to be in use longer should get longer Art. 13(8), Recital 60. The number has to be defensible against user expectations, the nature of the product, comparable products on the market, and the support periods of the third-party components providing core functions. It also has to appear at the point of purchase.

Our product was designed years ago. Do we have to redesign it?

Generally no. Run a current risk assessment and show that the existing design already addresses the identified risks. You do not have to recreate historical design or test documentation, and you do not have to add security features that the risk assessment does not call for Guidance §2.7. You do have to complete conformity assessment, draw up the declaration of conformity, affix CE marking, and run vulnerability handling.

We are a supplier, not a manufacturer. What do our customers need from us?

Whatever their own compliance depends on. Expect contractual demands for component security specifications, an SBOM, vulnerability notification within defined windows, support period alignment with their product, notification of changes to hosted services, and the evidence they need for their due diligence under Art. 13(5). Suppliers who can hand this over as a package will be selected over those who cannot, well before any authority gets involved.

How does this sit with NIS2, DORA, the AI Act and the GDPR?

The CRA regulates the product and the economic operators around it. The others regulate entities, services, operational resilience, AI systems or personal data processing. The same architecture and the same incident can engage several of them at once with different triggers, scopes and deadlines. Build one intake and one control map, then preserve each regime's own clock. Aligning the CRA awareness test with the NIS2 implementing regulation and the EDPB's breach guidance, as the Commission's guidance does, is the practical starting point.

What happens if we are late?

Administrative fines run to EUR 15 000 000 or 2.5% of worldwide annual turnover for the essential requirements and the manufacturer obligations Art. 64(2). The larger commercial exposure is usually elsewhere: market surveillance authorities can require corrective action, restrict availability, or order withdrawal and recall, and customers will start asking for CRA evidence in procurement long before enforcement begins.

Answers are general, not adviceCase-by-case assessment always required
OneZero LegalGoslar, Germany

SOURCES &INFORMATION

How this page was made. It was drafted by Claude, an AI assistant by Anthropic, working from the Regulation and the Commission's guidance, with every citation checked against the official texts listed below. Oliver Schmidt-Prietz, Rechtsanwalt (LL.M.), directed, reviewed and supervised the work and is responsible for the content.

Oliver Schmidt-Prietz advises on EU digital regulation, data protection and product compliance, and builds the tooling that makes those regimes operational. TÜV Nord certified data protection officer and Certified AI Officer under the EU AI Act.

OneZero Legal provides legal advice. OneZero Consulting provides data protection officer services and non-legal advisory.

Sources

Disclaimer. This page is general information on the law as it stands on 28 July 2026 and is provided for information purposes only. Although every citation has been checked against the official texts, no guarantee is given, and no liability is accepted, for the accuracy, completeness or currency of the content: the law, the guidance and administrative practice continue to evolve, and errors cannot be excluded. Only the texts published in the Official Journal of the European Union are authentic. Nothing on this page is legal advice, nothing on it creates a lawyer-client relationship, and nothing on it replaces a case-by-case assessment of your own products and circumstances by a qualified adviser. The Commission's guidance is non-binding, and an authoritative interpretation of the CRA can only come from the Court of Justice of the European Union.

Status 8 November 2026Non-binding, no legal advice