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CVE-2026-56003

HIGH CVSS: 8.5 Published: 2026-07-08 Modified: 2026-07-09

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.

Affected Platforms

X Libxfont

Weakness Type

CWE-122

References