What’s Vulnerable › Vulnerabilities
CVE-2025-14942: Authentication Bypass
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-01-06 · updated 2026-10-07
- Weakness: CWE-287
Description
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.
Affected products
- wolfSSL Inc. wolfSSH: before 1.4.22 — fixed in 1.4.22
How to fix
Upgrade to a fixed version: wolfSSL Inc. wolfSSH 1.4.22. Check the vendor advisory for mitigations.
References
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