CVE-2026-42769

CVE-2026-42769

Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation…

Vulnerability class: Improper Certificate Validation

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42769?
CVE-2026-42769 is a medium-severity vulnerability, classified under Improper Certificate Validation. CVSS score: 5.3/10. Published 2026-06-09.
How severe is CVE-2026-42769?
Medium severity. CVSS v3 base score is 5.3 out of 10.