PT-2026-31827 · Wolfssl · Wolfssl

Stefan0X03 · Published 2026-04-09 · Updated 2026-04-14 · CVE-2026-5448

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions wolfSSL (affected versions not specified)

Description A buffer overflow may occur when parsing date fields from a crafted X.509 certificate via the compatibility layer API. This issue is triggered when directly calling the wolfSSL X509 notAfter() and wolfSSL X509 notBefore() APIs from an application, and does not affect TLS or certificate verify operations within wolfSSL.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-5448

Affected Products

Wolfssl

References · 9

• https://github.com/wolfSSL/wolfssl/pull/10071 · Patch
• https://cve.org/CVERecord?id=CVE-2026-5448 · Security Note
• https://ubuntu.com/security/CVE-2026-5448 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-5448 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-5448 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-5448 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-5448 · Security Note
• https://twitter.com/CVEarity/status/2042641137954181457 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2044080299093406040 · Twitter Post