CVE-2026-88806
libX11 XkbGetMap Reply Heap-based Buffer Overflow
- State
- Published
- Severity
- 7.5 High
- Published
- Sep 21, 2026
- Updated
- Sep 22, 2026
- Reserved
- Sep 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | suse |
Weaknesses
- CWE-122 Heap-based buffer overflow
Affected Products
| Product | Versions |
|---|---|
libX11x.org |
|
References
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