CVE-2026-20852
Unknown Unknown - Not Provided
Incorrect Privilege Assignment in Windows Hello Enables Local Tampering

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-20852
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_hello *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-266 A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
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Executive Summary

This vulnerability is an incorrect privilege assignment in Windows Hello that allows an unauthorized attacker to perform tampering locally on the affected system. [1]

Impact Analysis

The vulnerability can impact you by allowing an unauthorized attacker to tamper with your system locally, potentially compromising the integrity of your Windows Hello authentication or related components. [1]

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