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CVE-2026-50263

X.Org X server

Description

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.

CVSS 5.5EPSS 0.14100000000000001%Risk 0.56
View source
Published
2026-06-05 12:16:39
Affected versions
unknown
Type
Core software
Last modified
2026-08-05 00:17:04
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Operating systems
Linux