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7.8 High

CVE-2025-21378 Windows CSC Service Elevation of Privilege Vulnerability

Description

Windows CSC Service Elevation of Privilege Vulnerability

Affected products and versions

Product Affected versions Fixed in
Windows 10 Version 1809 10.0 10.0.17763.0 → < 10.0.17763.6775 10.0.17763.6775
Windows Server 2019 10.0 10.0.17763.0 → < 10.0.17763.6775 10.0.17763.6775
Windows Server 2019 (Server Core installation) 10.0 10.0.17763.0 → < 10.0.17763.6775 10.0.17763.6775
Windows Server 2022 10.0 10.0.20348.0 → < 10.0.20348.3091 10.0.20348.3091
Windows 10 Version 21H2 10.0 10.0.19044.0 → < 10.0.19044.5371 10.0.19044.5371
Windows 11 version 22H2 10.0 10.0.22621.0 → < 10.0.22621.4751 10.0.22621.4751
Windows 10 Version 22H2 10.0 10.0.19045.0 → < 10.0.19045.5371 10.0.19045.5371
Windows Server 2025 (Server Core installation) 10.0 10.0.26100.0 → < 10.0.26100.2894 10.0.26100.2894
Windows 11 version 22H3 10.0 10.0.22631.0 → < 10.0.22631.4751 10.0.22631.4751
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Product Affected versions Fixed in
Windows 11 Version 23H2 10.0 10.0.22631.0 → < 10.0.22631.4751 10.0.22631.4751
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 10.0.25398.0 → < 10.0.25398.1369 10.0.25398.1369
Windows 11 Version 24H2 10.0 10.0.26100.0 → < 10.0.26100.2894 10.0.26100.2894
Windows Server 2025 10.0 10.0.26100.0 → < 10.0.26100.2894 10.0.26100.2894
Windows 10 Version 1507 10.0 10.0.10240.0 → < 10.0.10240.20890 10.0.10240.20890
Windows 10 Version 1607 10.0 10.0.14393.0 → < 10.0.14393.7699 10.0.14393.7699
Windows Server 2016 10.0 10.0.14393.0 → < 10.0.14393.7699 10.0.14393.7699
Windows Server 2016 (Server Core installation) 10.0 10.0.14393.0 → < 10.0.14393.7699 10.0.14393.7699
Windows Server 2012 6.2 6.2.9200.0 → < 6.2.9200.25273 6.2.9200.25273
Windows Server 2012 (Server Core installation) 6.2 6.2.9200.0 → < 6.2.9200.25273 6.2.9200.25273
Windows Server 2012 R2 6.3 6.3.9600.0 → < 6.3.9600.22371 6.3.9600.22371
Windows Server 2012 R2 (Server Core installation) 6.3 6.3.9600.0 → < 6.3.9600.22371 6.3.9600.22371

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