CVE-2026-88235 · Infrastructure
NO FIX YET
Microsoft's Servicing Stack Updates component can be made to act as an unintended intermediary, a confused deputy. An authorized local attacker can use it to elevate their privileges on the machine.
first public Nov 10, 2026 · 1 source
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The sources only describe a local privilege escalation in Servicing Stack Updates and do not list affected builds or configurations. Systems where untrusted or low-privilege users have local logons are the ones to look at first. Machines with no local user access beyond administrators have less exposure.
Who cares servicing-stack-update, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Unintended proxy or intermediary ('confused deputy') in Servicing Stack Updates 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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