CVE-2026-56002

脆弱性の種類

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.

影響を受ける製品

• x libxfont

参考情報

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