vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-13912

Potential non-constant time compiled code with Clang LLVM

LOW
1
CVSS Score
Published: December 11, 2025 at 05:09 PM UTC
Updated: October 14, 2026 at 08:10 PM UTC
1 product affected across 1 vendorwolfSSL

Using wolfSSL by wolfSSL?

Get instant alerts when new vulnerabilities affect wolfSSL - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
LOW1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

wolfSSL· Wolfssl
90%
0 ≤ v < 5.8.40
Affected range stops below 5.8.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://github.com/wolfSSL/wolfssl/pull/9148

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

1LOWwolfSSL
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-203

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card