Disclosure summary
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.
Source-reported weakness categories
CWE-287
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-14942
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| wolfssh | wolfssh | * {"versionEndExcluding":"1.4.22"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Issue Tracking
PUBLISHED 2026-01-06T13:15:42-05:00
MODIFIED 2026-10-07T05:10:00-04:00
INGESTED 2026-10-08T12:40:20-04:00