CVE-2026-88806

HIGH CVSS 7.5 View on NVD ↗

A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Published: Sep 21, 2026 14:17 UTC Modified: Sep 22, 2026 04:18 UTC