CVE-2021-40855 — CRITICAL (9.8)

Q: What is CVE-2021-40855?

CVE-2021-40855 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.

Q: How severe is CVE-2021-40855?

CVE-2021-40855 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-40855?

Check the references section above for vendor advisories and patch information. Affected products include: Europa Technical Specifications For Digital Covid Certificates.

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Europa	Technical Specifications For Digital Covid Certificates	< 1.1

Related Weaknesses (CWE)

CWE-295

References

https://github.com/eu-digital-green-certificates/dgc-overview/security/advisorieThird Party Advisory
https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certifiProductVendor Advisory
https://github.com/eu-digital-green-certificates/dgc-overview/security/advisorieThird Party Advisory
https://www.consilium.europa.eu/en/policies/coronavirus/eu-digital-covid-certifiProductVendor Advisory

FAQ

What is CVE-2021-40855?

CVE-2021-40855 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.

How severe is CVE-2021-40855?

CVE-2021-40855 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-40855?

Check the references section above for vendor advisories and patch information. Affected products include: Europa Technical Specifications For Digital Covid Certificates.