CVE-2026-109092
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XWayland and X Server Negative Size Handling Remote Code Execution

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: SUSE

Description
Incorrectly handled negative sizes when processing ProcXvShmPutImage requests in the X.Org xwayland before 24.1.15 and X Server before 21.1.26 could be used by local authenticated X clients to crash the X server or execute code.

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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-2026-109092
EUVD
EUVD-2026-125400

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-191 The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

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