CVE-2026-56003 — libXfont2 computeProps Property Buffer Heap Buffer Overflow
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 u…
Published: 2026-07-08 · CVSS: 8.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7