6.9Medium
CVE-2026-93524X.Org Server XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read
Description
A buffer overread in CheckKeySyms() in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server.
Weakness (CWE):
CWE-126
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| x.org | xorg-x11-server | < 21.1.25 | |
| x.org | xwayland | < 24.1.14 |