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    CVE-2026-4428

    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.

    Published:Mar 19, 2026
    Last Modified:Mar 25, 2026
    EPS:Mar 19, 2026
    EPSS Score:0.00022
    CVSS Score:7.4

    Affected Products

    Vendor
    Aws
    Product
    Aws-lc
    Vendor
    Aws
    Product
    Aws-lc-fips

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High