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Affected Component
Analysis
xwayland
Exploitable
Name
CVE-2026-50264
Description
An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://access.redhat.com/security/cve/CVE-2026-50264Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2485389Issue Tracking
https://redhat.atlassian.net/browse/PSIRTSUPT-16950Permissions Required
Analysis#
Vulnerability Ratings#
7.8
CVSSv31
NaN
other