CVE-2025-12889
TLS 1.2 Client Can Downgrade Digest Used
MEDIUM
5.4
CVSS Score
Published: November 21, 2025 at 11:06 PM UTC
Updated: October 19, 2026 at 01:10 PM UTC
1 product affected across 1 vendorwolfSSL
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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
Description
With TLS 1.2 connections a client can use any digest, specifically a weaker digest that is supported, rather than those in the CertificateRequest.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo
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