AWS LC FIPS vulnerabilities

2 vulnerabilities

Known vulnerabilities in AWS LC FIPS, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

9.1CVE-2026-4428awsaws-lc+3
EPSS score
0.27%
A logic error in CRL distribution point validation in AWS-LC before 1.71.0 causes partitioned CRLs to be incorrectly rejected as out of scope, which allows a revoked certificate to bypass certificate revocation checks. To remediate this issue, users should upgrade to AWS-LC 1.71.0 or AWS-LC-FIPS-3.3.0.8.2CVE-2026-3337amazonaws_libcrypto+6
EPSS score
0.49%
Observable timing discrepancy in AES-CCM decryption in AWS-LC allows an unauthenticated user to potentially determine authentication tag validity via timing analysis. The impacted implementations are through the EVP CIPHER API: EVP_aes_128_ccm, EVP_aes_192_ccm, and EVP_aes_256_ccm. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.