CVE-2000-0620: Open Group X

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

libX11 X library allows remote attackers to cause a denial of service via a resource mask of 0, which causes libX11 to go into an infinite loop.

Affected products

• Open Group X: version 11.0r6 only; version 11.0r6.1 only; version 11.0r6.2 only; version 11.0r6.3 only; version 11.0r6.4 only
• XFREE86 Project x11r6: version 3.3.3 only; version 3.3.4 only; version 3.3.5 only; version 3.3.6 only; version 4.0 only

Published 2000-06-19. Last modified 2026-06-16.