CVE-2026-6450

CRL critical extension bypass in ParseCRL_Extensions

Published Jun 25, 2026 CVSS 4.0 · 1 Low EPSS < 1% KEV · Not listed
Description
A CRL critical extension bypass exists in ParseCRL_Extensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when parsed.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4683-1 wolfssl security update
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wolfssl
Wolfssl wolfssl
Vendors & Products Wolfssl
Wolfssl wolfssl
Type Values Removed Values Added
Description A CRL critical extension bypass exists in ParseCRL_Extensions where critical extensions are not properly enforced, allowing a crafted CRL with an unhandled critical extension to be accepted. This only affects builds with CRL support enabled and where a crafted CRL had a trusted signature when parsed.
Title CRL critical extension bypass in ParseCRL_Extensions
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 1, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
wolfSSL
Published
Updated
Jun 26, 2026, 1:11 PM
Reserved
Apr 16, 2026, 7:15 PM
Status
Analyzed
Published
Jun 25, 2026, 9:16 PM
Modified
Jun 27, 2026, 6:32 PM