CVE-2001-0955: XFREE86 Project x11r6

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title.

Affected products

• XFREE86 Project x11r6: version 4.0 only; version 4.0.1 only; version 4.0.3 only

Published 2001-09-22. Last modified 2026-06-16.