CVE-2026-56002 (GCVE-0-2026-56002)

Vulnerability from cvelistv5 – Published: 2026-07-08 09:12 – Updated: 2026-07-09 03:55
VLAI
Title
libXfont2 PCF Font Parsing Heap Buffer Overflow
Summary
A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8  allows attackers authenticated as X client to execute code within the X server.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 00:00 UTC
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
suse CNA under the mitre root
CNA scorecard B 80/100 over 118 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
X.Org libXfont2 Affected: 0 , < 2.0.8 (rpm)
    cpe:2.3:a:x.org:libxfont2:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-08 09:08
Credits
Anonymous working with Trend Micro Zero Day Initiative.
Show details on NVD website
To clipboard 

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