CVE-2025-21378: Windows CSC Service Elevation of Privilege Vulnerability
First published: Tue Jan 14 2025(Updated: )
Windows CSC Service Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =23H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows 10 | <10.0.10240.20890 | |
| Microsoft Windows 10 | <10.0.10240.20890 | |
| Microsoft Windows 10 | <10.0.14393.7699 | |
| Microsoft Windows 10 | <10.0.14393.7699 | |
| Microsoft Windows 10 | <10.0.17763.6775 | |
| Microsoft Windows 10 | <10.0.17763.6775 | |
| Microsoft Windows 10 | <10.0.19044.5371 | |
| Microsoft Windows 10 | <10.0.19045.5371 | |
| Windows 11 | <10.0.22621.4751 | |
| Windows 11 | <10.0.22631.4751 | |
| Windows 11 | <10.0.26100.2894 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | <10.0.14393.7699 | |
| Microsoft Windows Server 2019 | <10.0.17763.6775 | |
| Microsoft Windows Server 2022 | <10.0.20348.3091 | |
| Microsoft Windows Server 2022 | <10.0.25398.1369 | |
| Microsoft Windows Server 2025 | <10.0.26100.2894 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | ||
| Windows 10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21378?
CVE-2025-21378 is rated as a high severity vulnerability, allowing for elevation of privilege in affected systems.
How do I fix CVE-2025-21378?
To fix CVE-2025-21378, apply the latest security patches provided by Microsoft for your affected Windows product.
Which versions of Windows are affected by CVE-2025-21378?
CVE-2025-21378 affects various versions of Windows including Windows Server 2022, Windows 10, Windows 11, and Windows Server 2016.
What type of vulnerability is CVE-2025-21378?
CVE-2025-21378 is classified as an elevation of privilege vulnerability found in the Windows CSC Service.
Is there a workaround for CVE-2025-21378?
As of now, it is recommended to apply patches rather than relying on workarounds for CVE-2025-21378.
- collector/msrc-cve
- source/Microsoft
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- canonical/microsoft windows server 2012 r2
- canonical/microsoft windows 10
- canonical/microsoft windows server 2025
- canonical/microsoft windows server 2022 23h2
- canonical/microsoft windows server
- canonical/microsoft windows server 2019
- canonical/windows 11
- version/windows 11/23h2
- version/windows 11/22h2
- version/windows 11/24h2
- canonical/microsoft windows server 2022
- version/microsoft windows server/r2
- canonical/microsoft windows server 2016
- canonical/windows 10
- version/windows 10/1809
- version/windows 10/22h2
- version/windows 10/1607
- version/windows 10/21h2