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CVE-2026-56003 is a heap-based buffer overflow vulnerability in the X.Org libXfont2 library affecting versions prior to 2.0.8. It occurs due to missing size checks in the property buffer when parsing PCF font files in the ComputeScaledProperties() function. Exploitation requires an authenticated X client and may lead to code execution within the X server. The vulnerability has a high severity with a CVSS score of 8.5. A patch is available to address this issue. Join the discussion | CVE Database V5 | 07/15/2026, 05:00:00 UTC Added: 07/08/2026, 10:16:17 UTC |
CVE-2026-56002 is a heap-based buffer overflow vulnerability in the pcfReadFont() function of libXfont2 before version 2.0.8. The vulnerability arises from missing glyph bounds checking, which may allow authenticated X clients to execute code within the X server. It has a high severity with a CVSS score of 8.5, indicating a significant risk of code execution and system compromise. A patch is available to address this issue. Join the discussion | CVE Database V5 | 07/15/2026, 05:00:00 UTC Added: 07/08/2026, 10:16:17 UTC |
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