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NVD Vulnerability Details :
CVE-2026-4428
Awaiting Analysis
More InfoOfficial Page
Source-ff89ba41-3aa1-4d27-914a-91399e9639e5
View Known Exploited Vulnerability (KEV) details
Published At-19 Mar, 2026 | 21:17
Updated At-20 Mar, 2026 | 13:39

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.09.1CRITICAL
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.17.4HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Type: Secondary
Version: 4.0
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 7.4
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-299Secondaryff89ba41-3aa1-4d27-914a-91399e9639e5
CWE ID: CWE-299
Type: Secondary
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://aws.amazon.com/security/security-bulletins/2026-010-AWS/ff89ba41-3aa1-4d27-914a-91399e9639e5
N/A
https://github.com/aws/aws-lc/releases/tag/v1.71.0ff89ba41-3aa1-4d27-914a-91399e9639e5
N/A
Hyperlink: https://aws.amazon.com/security/security-bulletins/2026-010-AWS/
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Resource: N/A
Hyperlink: https://github.com/aws/aws-lc/releases/tag/v1.71.0
Source: ff89ba41-3aa1-4d27-914a-91399e9639e5
Resource: N/A
Change History
0Changes found
Details not found