CVE-2023-40303: GNU InetUtils

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.

Affected products

• GNU InetUtils: up to and including 2.4

Published 2023-08-14. Last modified 2026-06-17.