CVE-2025-14942: critical vulnerability in wolfSSL wolfSSH
Authentication Bypass
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.4%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Red
Affected products
wolfSSL · wolfSSHRelated CVEs — wolfSSL wolfSSH
In the same product, most dangerous first.
CVE-2026-83540HIGHwolfSSHd on Windows race condition leading to logon token reused across connectionsEPSS 0.6%CVE-2025-11625CRITICALHost verification bypass and credential leakEPSS 0.4%CVE-2025-15382MEDIUMClient SCP Request Triggers Buffer Overread by 1 ByteEPSS 0.4%CVE-2026-0930LOWPotential wolfSSHd Buffer out-of-bounds Read on Windows Handling Terminal ResizeEPSS 0.2%