CVE-2026-5448 — 1-2 Byte Buffer Overflow in wolfSSL_X509_notAfter/notBefore

CVE-2026-5448

1-2 Byte Buffer Overflow in wolfSSL_X509_notAfter/notBefore PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
wolfSSL / wolfSSL	affected 0 before 5.9.1

CWE

CWE-122

References

https://github.com/wolfSSL/wolfssl/pull/10071

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.