7.5
High
CVE-2026-88806 A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| libX11 1.8 | earliest → < 1.8.14 | 1.8.14 |
Other CVEs of libX11
The 4 CVEs of libX11 →
CVE-2026-94285
An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X…
5.1
Medium
CVE-2026-94284
An out-of-bounds read vulnerability in libX11's XIM trigger-key registration parser in libX11 before 1.8.14 could be…
5.5
Medium
CVE-2026-94283
An out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser in libX11 before 1.8.14 could be…
6.5
Medium