CVE-2015-6806: GNU Screen

Medium severity, CVSS 5.0. EPSS: 4.1% chance of exploitation in the next 30 days.

The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value.

Affected products

• GNU GNU Screen: up to and including 4.3.1

Published 2015-09-28. Last modified 2026-06-17.