Live › vulnerability › CVE-2026-93523
Go to dashboardA malformed XIPassiveUngrabDevice request with an out-of-range modifier value writes past a heap buffer in X.Org X Server and XWayland. An authenticated X client can crash the server or potentially execute code in the X server context.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-28 17:34 UTC. All times on this page are UTC.
Systems running an X.Org X Server before 21.1.15 or XWayland before 24.1.14 where local X clients can connect. Exposure depends on whether untrusted or less-trusted clients can reach the X display. Hosts with no X server, or with X access limited to trusted users, have less exposure.
No product ranges from the sources yet.
Xorg -version or X -version and compare with 21.1.15Xwayland -version and compare with 24.1.1421.1.15 or later24.1.14 or laterEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.
This page as .md · .json · in your agent: get_signal("CVE-2026-93523")
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