CVE-2026-93523
High
Description
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Azl3 Xorg-x11-server-xwayland 24.1.13-1
PublishedOct 28, 2026
First seenNov 4, 2026
Weakness typeCWE-122CWE-122
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft azl3_xorg-x11-server-xwayland_24.1.13-1 | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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