CVE-2026-28372: GNU InetUtils

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the login(1) implementation of util-linux in release 2.40. This is related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an unprivileged local user to create a login.noauth file.

Affected products

• GNU InetUtils: up to and including 2.7

Published 2026-02-27. Last modified 2026-06-17.