CVE-2026-56003 (GCVE-0-2026-56003)
Vulnerability from cvelistv5
Published
2026-07-08 09:25
Modified
2026-07-09 03:55
Severity ?
8.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based buffer overflow
Summary
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.
References
Impacted products
Vendor Product Version
X.Org libXfont2 Version: 0   < 2.0.8
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