WINDOWS INPUT SYSTEM · CVE-2026-119916 · Infrastructure
NO FIX YET
A heap-based buffer overflow in the Windows Input System lets an attacker who already has a local account raise their privileges. The attacker gets the rights of a higher-privileged user or the system itself.
first public Nov 10, 2026 · 1 source
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Any Windows machine where someone can log in locally is potentially exposed, since the attacker must already be authorized on the system. Shared workstations, terminal servers and multi-user hosts carry the most risk. Machines with only a single trusted user have less exposure. unknown which Windows versions the sources list as affected.
Not affected if no-untrusted-local-users, single-user-machine
Who cares local-accounts, terminal-server, windows
winver to see the Windows build and compare it with the patched build in Microsoft's advisory for CVE-2026-119916No fix yet, per the sources.
Heap-based buffer overflow in Windows Input System allows an authorized attacker to elevate privileges locally.
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