CVE-2006-4573: GNU Screen

Low severity, CVSS 2.6. EPSS: 2.3% chance of exploitation in the next 30 days.

Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.

Affected products

• GNU Screen: up to and including 4.0.2

Published 2006-10-24. Last modified 2026-06-16.