CVE-2017-5618: GNU Screen

High severity, CVSS 7.8. EPSS: 1.1% chance of exploitation in the next 30 days.

GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions.

Affected products

• GNU Screen: up to and including 4.5.0

Published 2017-03-20. Last modified 2026-06-17.