CVE-2024-54661: Dest-Unreach Socat

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

readline.sh in socat before1.8.0.2 relies on the /tmp/$USER/stderr2 file.

Affected products

• Dest-Unreach Socat: from 1.6.0.0, before 1.8.0.2 (fixed in 1.8.0.2); from 2.0.0-b1, up to and including 2.0.0-b9; up to and including 1.8.0.1

Published 2024-12-04. Last modified 2026-06-17.