CVE-2025-21275: CWE-285: Improper Authorization in Microsoft Windows 10 Version 21H2
Windows App Package Installer Elevation of Privilege Vulnerability
AI Analysis
Technical Summary
This vulnerability in Windows 10 Version 21H2 (build 10.0.19044.0) involves improper authorization in the Windows App Package Installer, enabling elevation of privilege. The CVSS 3.1 vector indicates the attack requires local access with low complexity, low privileges, and no user interaction, resulting in high confidentiality, integrity, and availability impacts. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with limited privileges on the system to elevate their privileges, potentially gaining full control over the affected Windows 10 system. This could lead to unauthorized access to sensitive data, modification of system settings, and disruption of system availability.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21275 to remediate this vulnerability.
CVE-2025-21275: CWE-285: Improper Authorization in Microsoft Windows 10 Version 21H2
Description
Windows App Package Installer Elevation of Privilege Vulnerability
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Windows 10 Version 21H2 (build 10.0.19044.0) involves improper authorization in the Windows App Package Installer, enabling elevation of privilege. The CVSS 3.1 vector indicates the attack requires local access with low complexity, low privileges, and no user interaction, resulting in high confidentiality, integrity, and availability impacts. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with limited privileges on the system to elevate their privileges, potentially gaining full control over the affected Windows 10 system. This could lead to unauthorized access to sensitive data, modification of system settings, and disruption of system availability.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21275 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-10T23:54:12.936Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21275","vendor":"Microsoft"}]
Threat ID: 68c0bd4f9ed239a66badeb20
Added to database: 09/09/2025, 23:50:39 UTC
Last enriched: 06/10/2026, 09:48:26 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 77
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