PT-2026-112407 · Microsoft · Windows+13

CVE-2026-83505

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Published

2026-10-13

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Updated

2026-10-13

CVSS v3.1

7.0

High

VectorAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Windows Setup Files Cleanup (affected versions not specified)
Description A time-of-check time-of-use (toctou) race condition exists in Windows Setup Files Cleanup. This occurs when a program checks the state of a resource before using it, but the state changes between the check and the use. An authorized attacker can exploit this to elevate privileges locally.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Untrusted Search Path

Time Of Check To Time Of Use

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Weakness Enumeration

Related Identifiers

CVE-2026-83505

Affected Products

Windows
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21H2
Windows 10 Version 22H2
Windows 11 Version 23H2
Windows 11 Version 24H2
Windows 11 Version 25H2
Windows 11 Version 26H2
Windows 11 Version 26H1
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2025