VULNERABILITY INTELLIGENCE

CVE-2026-3336

CVSS score8.7 HIGH
EPSS probability0.74%
CISA KEVNot currently listed
Published2026-03-02
Last modified2026-07-15
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Description

Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

Weakness classification

  • CWE-295: Improper Certificate Validation

Primary references