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CVE-2026-56003

libXfont2

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.

CVSS 8.5EPSS 0.373%Risk 0.88
View source
Published
2026-07-08 10:16:23
Affected versions
<2.0.8
Type
Library
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H