Vulnerability in Europa Technical Specifications For Digital Covid Certificates
CVE-2021-40855
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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.007 (47.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Europa Technical_specifications_for_digital_covid_certificates
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-40855?
- CVE-2021-40855 is a critical-severity vulnerability in Europa Technical Specifications For Digital Covid Certificates, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2022-01-21.
- How severe is CVE-2021-40855?
- Critical severity. CVSS v3 base score is 9.8 out of 10.