What is CVE-2026-42013?

CVE-2026-42013 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name

Which CVE IDs does CVE-2026-42013 cover?

CVE-2026-42013 covers the following CVE IDs: CVE-2026-42013. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-42013?

CVE-2026-42013 has a CVSS v3 base score of 8.2, published by Microsoft Security Response Center (MSRC).

CVE-2026-42013HighCVSS 8.2

Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name

Vendor

Microsoft Security Response Center (MSRC)

Published

June 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-42013 →