Description

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.

INFO

Published Date :

2026-03-19T20:37:53.851Z

Last Modified :

2026-03-19T20:40:06.587Z

Source :

AMZN
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4428 vulnerability.

Vendors Products
Aws
  • Aws-lc
  • Aws-lc-fips
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4428.

URL Resource
https://aws.amazon.com/security/security-bulletins/2026-010-AWS/ cve-icon cve-icon cve-icon
https://github.com/aws/aws-lc/releases/tag/v1.71.0 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-4428 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-4428 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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SS Confidentiality
SS Integrity
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact