🔐 CVE Alert

CVE-2026-109093

UNKNOWN 0.0

X.Org Server XTestFakeInput Valuator Stack Out-Of-Bounds Write

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

A stack buffer overflow in  ProcXTestFakeInput DeviceValuator handling in X.Org xwayland before 24.1.15 and X server before 21.1.26 could be used by authenticated clients to crash or execute code in the X server.

CWE CWE-121
Vendor x.org
Product xwayland
Published Nov 13, 2026
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Affected Versions

X.Org / xwayland
0 < 24.1.15
X.Org / xorg-x11-server
0 < 21.1.26

References

NVD ↗ CVE.org ↗ EPSS Data ↗
gitlab.freedesktop.org: https://gitlab.freedesktop.org/xorg/xserver/-/commit/99ce069ae814b39048543062e073320f14723ee0

Credits

Acts1631 <[email protected]>