{"id":"CVE-2026-56001","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-56001","summary":"libXfont2 BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow","details":"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","published":"2026-07-08T08:49:24.706Z","modified":"2026-08-12T16:41:27.809665Z","cvss":{"score":8.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56001.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56001"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2026/07/08/1"},{"type":"FIX","url":"https://gitlab.freedesktop.org/xorg/lib/libxfont/-/commit/be0b08e2d354138d3222b4490e2a77c6ee42f778"},{"type":"PACKAGE","url":"https://gitlab.freedesktop.org/xorg/lib/libxfont"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T16:41:27.809665Z"}}