CVE-2003-0071: XFREE86 Project x11r6

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and earlier allows attackers to cause a denial of service via a certain character escape sequence that causes the terminal to enter a tight loop.

Affected products

• XFREE86 Project x11r6: version 4.0 only; version 4.0.1 only; version 4.0.3 only; version 4.1.0 only; version 4.2.0 only; version 4.2.1 only

Published 2003-03-03. Last modified 2026-06-16.