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.
Published: 2026-07-08
Score: 8.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 08 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 08 Jul 2026 10:00:00 +0000

Type Values Removed Values Added
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.
Title libXfont2 computeProps Property Buffer Heap Buffer Overflow
First Time appeared X.org
X.org libxfont2
Weaknesses CWE-122
CPEs cpe:2.3:a:x.org:libxfont2:*:*:*:*:*:*:*:*
Vendors & Products X.org
X.org libxfont2
References
Metrics cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Subscriptions

X.org Libxfont2
cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-07-08T12:06:51.966Z

Reserved: 2026-06-18T09:26:55.988Z

Link: CVE-2026-56003

cve-icon Vulnrichment

Updated: 2026-07-08T12:06:44.417Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow