high7.8
CVE-2026-93520
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before…
Impact
A heap buffer overflow caused by mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
Affected products
| Product | Affected versions |
|---|---|
| X.Org X Server | before 2.1.25 |
| XWayland | before 24.1.14 |
Versions were read from the advisory text. No structured product data has been published for this record yet.