CVE-2026-6450

UNKNOWN 0.0

CRL critical extension bypass in ParseCRL_Extensions

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-295
Vendor	wolfssl
Product	wolfssl
Published	Jun 25, 2026

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Affected Versions

wolfSSL / wolfSSL

4.3.0 ≤ 5.9.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/wolfSSL/wolfssl/pull/10239 wolfssl.com: https://www.wolfssl.com/docs/security-vulnerabilities/

Credits

Oleh Konko (@1seal)