CVE-2025-14942

wolfSSH’s key exchange state machine can be manipulated to leak the client’s password in the clear, trick the client to send a bogus signature, or trick the client into skipping user authentication. This affects client applications with wolfSSH version 1.4.21 and earlier. Users of wolfSSH must update or apply the fix patch and it’s recommended to update credentials used. This fix is also recommended for wolfSSH server applications. While there aren’t any specific attacks on server applications, the same defect is present. Thanks to Aina Toky Rasoamanana of Valeo and Olivier Levillain of Telecom SudParis for the report.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/wolfSSL/wolfssh/pull/855	Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssh:wolfssh:*:*:*:*:*:*:*:*

History

12 Jan 2026, 17:53

Type	Values Removed	Values Added
First Time		Wolfssh Wolfssh wolfssh
CPE		cpe:2.3:a:wolfssh:wolfssh::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://github.com/wolfSSL/wolfssh/pull/855 -~~	() https://github.com/wolfSSL/wolfssh/pull/855 - Issue Tracking

06 Jan 2026, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-06 18:15

Updated : 2026-01-12 17:53

NVD link : CVE-2025-14942

Mitre link : CVE-2025-14942

CVE.ORG link : CVE-2025-14942

JSON object : View

Products Affected

wolfssh

wolfssh

CWE

CWE-287

Improper Authentication

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