CVE-2026-4428
CRL Distribution Point Scope Check Logic Error in AWS-LC
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
6th
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.
| CWE | CWE-299 |
| Vendor | aws |
| Product | aws-lc |
| Published | Mar 19, 2026 |
| Last Updated | Mar 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for aws aws-lc
Be the first to know when new high vulnerabilities affecting aws aws-lc are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
AWS / AWS-LC
1.24.0 < 1.71.0
AWS / AWS-LC-FIPS
3.0.0 < 3.3.0