Live › vulnerability › CVE-2026-93520
Go to dashboardA size mismatch between XkbAllocNames and ChangeKeycodeRange in the X.org X server and XWayland causes a heap buffer overflow. 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 15:33 UTC. All times on this page are UTC.
Systems running the X.org X server before or XWayland before . Exposure requires an authenticated X client that can reach the server; the sources do not say how commonly that is possible on desktops or multi-user hosts. Systems with no X server or XWayland installed can skip it.
2.1.2524.1.14No product ranges from the sources yet.
Xorg -version or Xwayland -version to read the installed server version2.1.25 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 mismatching size calculations between XkbAllocNames and ChangeKeycodeRange in X.org X server before 2.1.25 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-2026-93520")
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