{"id":"CVE-2026-88806","published":"2026-09-21T14:17:22.273","lastModified":"2026-09-22T04:18:02.373","description":"A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-122"],"vendors":[],"products":[],"references":[{"url":"https://gitlab.freedesktop.org/xorg/lib/libx11/-/merge_requests/309","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}