CVE-2026-88806
A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map.
- Published Sep 21, 2026
- CVSS 7.5 high
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available