Vulnerability Details CVE-2026-3338
Improper signature validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes.
Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.0%
CVSS Severity
CVSS v3 Score 7.5