CVE-2026-109093
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Stack Buffer Overflow in X.Org Xwayland and X Server

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: SUSE

Description
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.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-109093
EUVD
EUVD-2026-125346

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
x.org xwayland to 24.1.15 (exc)
x.org x_server to 21.1.26 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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