ENISA Reporting: A 24-Hour Notification Guide for the CRA

The Cyber Resilience Act Notification Timeline

Under EU Regulation 2024/2847, the Cyber Resilience Act (CRA), mandatory incident reporting requirements become enforceable on September 11, 2026. This deadline precedes full product compliance obligations by 15 months. When an actively exploited vulnerability or a severe security incident impacts your software, your incident response team must act with precision and speed.

For SaaS providers and software developers, meeting the 24-hour notification window is a critical operational challenge. Understanding these regulatory expectations allows you to mitigate risks effectively and avoid significant penalties, which can reach up to 15 million euros or 2.5% of your total worldwide annual turnover.

Defining the 24-Hour Notification Triggers

Not every minor bug or routine static analysis finding requires a formal report. The CRA mandates notification through the ENISA single reporting platform only when specific criteria are met:

• Actively exploited vulnerabilities: Any flaw in your product with digital elements where reliable evidence confirms that malicious actors are executing unauthorized code or bypassing security controls.
• Severe security incidents: Any security event causing a significant negative impact on the confidentiality, integrity, or availability of your product, its operational environment, or user data.

Step 1: The 24-Hour Early Warning Notification

The 24-hour clock initiates the moment your organization confirms the exploitation or incident. This initial phase is not for submitting a comprehensive forensic analysis, but for providing European authorities and CSIRTs with immediate situational awareness.

Your initial early warning must include these essential data points:

• Identification of the affected product, including specific package names, impacted versions, and the underlying ecosystem.
• A preliminary assessment distinguishing between malicious activity and accidental system failure.
• Known or suspected cross-border implications, detailing potential exposure for users across different EU Member States.

Step 2: The 72-Hour Detailed Incident Notification

Within 72 hours of initial awareness, you are required to submit a detailed notification. This report builds upon the early warning by providing deeper technical context.

At this stage, you must provide a severity analysis, identified indicators of compromise (IoCs), and interim mitigation strategies that administrators can implement while a permanent patch is developed.

Step 3: The 30-Day Final Post-Mortem Report

No later than one month following the resolution of the incident or the public release of a security update, you must deliver a final report. This document must outline the root cause, the remediation steps taken, and comprehensive guidance for your users.

Operationalizing CRA Compliance Before 2026

Meeting a 24-hour deadline necessitates a pre-established incident response playbook. If your team spends the first 12 hours identifying affected software versions or locating reporting contacts, you risk missing the statutory deadline.

Engineering teams should maintain continuous dependency visibility, automated Software Bills of Materials (SBOMs), and pre-drafted incident templates. Mapping third-party packages within your codebase is essential to reducing triage time from days to minutes.

CRAcheck streamlines your path to regulatory compliance. By integrating with your GitHub repositories, CRAcheck generates automated SBOMs, monitors for vulnerability alerts, and provides pre-filled ENISA reporting templates, ensuring your team can respond decisively during a security event.