CVE-2026-97793
Undergoing Analysis Undergoing Analysis - In Progress

Windows Setup Privilege Escalation via Missing Authentication

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Microsoft Corporation

Description
Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-14
AI Q&A
2026-10-14
EPSS Evaluated
N/A
NVD
CVE-2026-97793
EUVD
EUVD-2026-100312

Affected Vendors & Products

Showing 14 associated CPEs
Vendor Product Version / Range
Microsoft Windows 10 Version 1809 10.0.17763.0
Microsoft Windows 10 Version 21H2 10.0.19044.0
Microsoft Windows 10 Version 22H2 10.0.19045.0
Microsoft Windows 11 version 23H2 10.0.22631.0
Microsoft Windows 11 Version 23H2 10.0.22631.0
Microsoft Windows 11 Version 24H2 10.0.26100.0
Microsoft Windows 11 Version 25H2 10.0.26200.0
Microsoft Windows 11 version 26H1 10.0.28000.0
Microsoft Windows 11 Version 26H2 10.0.26300.0
Microsoft Windows Server 2019 10.0.17763.0
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0
Microsoft Windows Server 2022 10.0.20348.0
Microsoft Windows Server 2025 10.0.26100.0
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

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Executive Summary

This vulnerability involves missing authentication for a critical function in Windows Setup and Deployment. An authorized attacker could exploit this to elevate their privileges locally on affected systems.

Impact Analysis

An attacker with local access could gain higher privileges, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft to patch the missing authentication flaw in Setup and Deployment components.

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