CVE-2026-73004: CWE-306: Missing Authentication for Critical Function in Microsoft Windows 10 Version 21H2
Description
Missing authentication for critical function in Windows Autopilot allows an authorized attacker to perform tampering locally.
CVSS v3.1
5.5medium
Affected software
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-73004 and classified under CWE-306 (Missing Authentication for Critical Function), affects Windows Autopilot in Microsoft Windows 10 Version 21H2. It allows an attacker with authorized local access to tamper with critical functions due to missing authentication controls. The CVSS 3.1 base score is 5.5 (medium severity), with an attack vector of local access, low attack complexity, and requiring privileges. The vulnerability does not impact confidentiality or availability but impacts integrity. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can tamper with critical functions in Windows Autopilot without proper authentication, potentially leading to unauthorized changes or manipulation of system behavior. The vulnerability does not affect confidentiality or availability but compromises integrity. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 Version 21H2 builds as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73004.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 08/10/2026
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [object Object]
Threat ID: 6aa04550acd9273b49fa9e14
Added to database: 09/08/2026, 17:26:40 UTC
Last enriched: 10/14/2026, 21:53:24 UTC
Last updated: 10/24/2026, 08:45:12 UTC
Views: 36
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