CVE-2021-40855
9.8 · CRITICALOverview
CVE-2021-40855 is a critical-severity vulnerability affecting europa technical_specifications_for_digital_covid_certificates. It was published on January 21, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance. A non-production public key certificate could have been used in production.
Remediation
Check the references section for vendor advisories and patches from europa. Update technical_specifications_for_digital_covid_certificates to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| europa | technical_specifications_for_digital_covid_certificates | >= 0, < 1.1 | Affected |
References
Frequently Asked Questions
What is CVE-2021-40855?
CVE-2021-40855 is a critical-severity vulnerability affecting europa technical_specifications_for_digital_covid_certificates. It was published on January 21, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2021-40855?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-40855?
Check the references section for vendor advisories and patches from europa. Update technical_specifications_for_digital_covid_certificates to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-40855?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-40855 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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