PT-2025-50637 · Wolfssl+1 · Wolfssl+1

Gilles Barthe + 3 · Published 2025-12-11 · Updated 2026-01-03 · CVE-2025-13912

Positive Technologies (AI Summary)

CVSS v4.0

1.0

Low

Base vector

AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Name of the Vulnerable Software and Affected Versions wolfSSL versions prior to 5.8.4

Description Certain constant-time implementations within wolfSSL may be altered by LLVM optimizations into non-constant-time binaries. This transformation can introduce observable timing discrepancies, potentially leading to information disclosure through timing side-channel attacks.

Recommendations Update to wolfSSL version 5.8.4 or later.

Fix

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2025-13912

Affected Products

Debian

Wolfssl

References · 12

• https://ubuntu.com/security/CVE-2025-13912 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-13912 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-13912 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-13912 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-13912 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-13912 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-13912 · Security Note
• https://github.com/wolfSSL/wolfssl/pull/9148 · Note
• https://twitter.com/CVEnew/status/1999876886982222113 · Twitter Post
• https://t.me/msrcreports/2884 · Telegram Post
• https://t.me/msrcreports/2657 · Telegram Post
• https://t.me/msrcreports/2812 · Telegram Post