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CVE-2026-5448

MEDIUM CVSS: 4.3 Published: 2026-04-10 Modified: 2026-06-17

Description

X.509 date buffer overflow in wolfSSL_X509_notAfter / wolfSSL_X509_notBefore. A buffer overflow may occur when parsing date fields from a crafted X.509 certificate via the compatibility layer API. This is only triggered when calling these two APIs directly from an application, and does not affect TLS or certificate verify operations in wolfSSL.

Affected Platforms

Wolfssl Wolfssl

Weakness Type

CWE-122

References