Description
A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS).
CVSS 4.3EPSS 0.28300000000000003%Risk 0.44
View source- Published
- 2026-06-23 04:17:36
- Affected versions
- unknown
- Type
- Critical software
- Last modified
- 2026-07-30 09:16:35
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- Operating systems
- Linux