VULNERABILITY INTELLIGENCE

CVE-2026-56003

CVSS score8.5 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-07-08
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Description

A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.

Weakness classification

  • meissner@suse.de: CWE-122

Primary references