CVE-2026-3336: PKCS7_verify Certificate Chain Validation Bypass in AWS-LC

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Mar
Released
2026-03-05
Last Updated
2026-03-06
EPSS Score
0.77% (percentile: 53.7%)

Affected Products (1)

Mariner

  • azl3 grpc 1.62.3-1 on Azure Linux 3.0

Revision History

  • 2026-03-05: Information published.
  • 2026-03-06: Information published.