CVE-2026-5448

MediumCVSS 4.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Apr 10, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-5448: Medium severity, CVSS 4.3 | Vulnix