CVE-2025-21204: Windows Process Activation Elevation of Privilege Vulnerability
First published: Tue Apr 08 2025(Updated: )
<p>Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Windows 10 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2016 | ||
| Windows 10 | =22H2 | |
| Microsoft Windows Server 2025 | ||
| Windows 10 | =21H2 | |
| Microsoft Windows Server 2019 | ||
| Windows 10 | =1809 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server | ||
| Windows 11 | =24H2 | |
| Windows 10 | =21H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Windows 10 | =1607 | |
| Windows 10 | =22H2 | |
| Windows 11 | =22H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | ||
| Microsoft Windows Server | ||
| Windows 10 | =1607 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server | ||
| Windows 10 | =22H2 | |
| Windows 11 | =24H2 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 | ||
| Windows 11 | =23H2 | |
| Windows 11 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2008 R2 | ||
| Windows 10 | =1809 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21204?
CVE-2025-21204 has been rated as a high-severity vulnerability, as it allows local privilege escalation.
How do I fix CVE-2025-21204?
To fix CVE-2025-21204, apply the security updates provided by Microsoft for the affected Windows products.
What products are affected by CVE-2025-21204?
CVE-2025-21204 affects multiple Microsoft products, including various versions of Windows Server and Windows 10.
Can an attacker exploit CVE-2025-21204 remotely?
No, CVE-2025-21204 requires local access for an attacker to exploit the vulnerability.
What type of vulnerability is CVE-2025-21204?
CVE-2025-21204 is categorized as an improper link resolution before file access vulnerability.
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- vendor/microsoft
- canonical/microsoft windows server
- canonical/windows 10
- canonical/microsoft windows server 2012 r2
- canonical/microsoft windows server 2008 r2
- canonical/microsoft windows server 2016
- version/windows 10/22h2
- canonical/microsoft windows server 2025
- version/windows 10/21h2
- canonical/microsoft windows server 2019
- version/windows 10/1809
- canonical/windows 11
- version/windows 11/24h2
- version/windows 11/23h2
- canonical/microsoft windows server 2022 23h2
- version/windows 10/1607
- version/windows 11/22h2
- canonical/microsoft windows server 2022