Improper input validation in Wolfssl

CVE-2025-12889

With TLS 1.2 connections a client can use any digest, specifically a weaker digest that is supported, rather than those in the CertificateRequest.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Wolfssl — versions 5.8.4, 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

facts@wolfssl.com (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2025-12889?: CVE-2025-12889 is a medium-severity vulnerability in Wolfssl, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2025-11-22.
How severe is CVE-2025-12889?: Medium severity. CVSS v3 base score is 5.4 out of 10.