GHSA-28f3-55mq-pp68MediumCVSS 4.3

A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in...

Published
June 23, 2026
Last Modified
June 23, 2026

🔗 CVE IDs covered (1)

📋 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).

🔗 References (4)