CVEvulnerability

CVE-2026-56003

8.8 HIGH Published 2026-07-08 Modified 2026-10-25 Official page ↗
Status
Analyzed
Published
2026-07-08
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-122

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 configurations

• x libxfont (>= 2.0.0 < 2.0.8)

Related

Weakness · CWE (1)

  • CWE-122 Heap-based Buffer Overflow weakness

References