CVE-2026-56002

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.

Affected Software

Weaknesses

• CWE-122: CWE-122 Heap-based buffer overflow

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/b4389e0b1d84a690b819bb27b1439968811a3674
• https://www.openwall.com/lists/oss-security/2026/07/08/1

• ←Previous
• Next→