CVE-2025-12889 LOW

CVE-2025-12889: TLS 1.2 Client Can Downgrade Digest Used

Vendor Wolfssl
Product wolfSSL
Weakness CWE-20 · Input validation
Published November 21, 2025
Last update December 8, 2025
View on NVD All CVEs

CVSS base score

2.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

November 21, 2025 CVE published
December 8, 2025 Record updated