CyberRota Analysis
AI-GeneratedA heap buffer overflow vulnerability exists in libXfont2 versions prior to 2.0.8, stemming from inadequate size checks when parsing PCF files in the ComputeScaledProperties() function. This flaw allows authenticated X clients to execute arbitrary code within the X server, potentially compromising system integrity. Organizations utilizing affected versions of libXfont2 should prioritize patching to mitigate the risk of exploitation.
CVE
CVE-2026-56003
Severity
HIGH
CVSS
8.5
EPSS
0.37%
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)