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libxfont vulnerabilities

Vulnerabilities published for libxfont in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 3

CVE-2026-56003
High · CVSS 8.5EPSS 0.4%No fix published
libXfont2 computeProps Property Buffer Heap Buffer Overflow
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.
libxfont Operating systems
Published July 8, 2026Updated July 9, 2026
Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗
CVE-2026-56002
High · CVSS 8.5EPSS 0.43%No fix published
libXfont2 PCF Font Parsing Heap Buffer Overflow
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.
libxfont Operating systems
Published July 8, 2026Updated July 9, 2026
Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗
CVE-2026-56001
High · CVSS 8.5EPSS 0.39%No fix published
libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow
A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could be used by attackers able to access the X Server to execute code within the X server cont
libxfont Operating systems
Published July 8, 2026Updated July 9, 2026
Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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