CVE-2026-56003

Published Jul 8, 2026

Last updated 15 days ago

Overview

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.
Source
meissner@suse.de
NVD status
Analyzed
Products
libxfont

Risk scores

CVSS 3.1

Type
Primary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

meissner@suse.de
CWE-122

Social media

Hype score
Not currently trending

Configurations