CVE-2026-122166 · Infrastructure
NO FIX YET
A stack-based buffer overflow in Windows Remote Desktop Services lets an attacker who already has an authorized account on the machine raise their privileges. The sources describe this as a local privilege escalation with a CVSS score of 7.8.
first public Nov 10, 2026 · 1 source
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Windows machines running Remote Desktop Services, most relevant on multi-user servers and terminal servers where several accounts log on. The sources do not list affected versions or the required account type beyond 'authorized attacker'. Single-user machines with no other accounts are lower risk.
Not affected if remote-desktop-services-disabled
Who cares remote-desktop-services, windows
winver or Get-ComputerInfo and compare it against Microsoft's security update for this CVEGet-Service TermService)No fix yet, per the sources.
Stack-based buffer overflow in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
This page as .md · .json · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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