CVEvulnerability

CVE-2026-42012

7.1 HIGH Published 2026-05-26 Modified 2026-10-29 Official page ↗
Status
Awaiting Analysis
Published
2026-05-26
Last modified
2026-10-29
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
Weaknesses
CWE-295

Description

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

References