High [CVE-2021-42286] Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability
This high-severity Microsoft Server advisory covers CVE-2021-42286 affecting Windows Server version 2004, Windows Server version 20H2.
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Summary
Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability
Affected products named by the advisory: Windows Server version 2004; Windows Server version 20H2.
- Windows 10 Version 2004 10.0.0 before 10.0.19041.1348
- Windows 10 Version 20H2 10.0.0 before 10.0.19042.1348
- Windows 10 Version 21H1 10.0.0 before 10.0.19043.1348
- Windows Server version 2004 10.0.0 before 10.0.19041.1348
- Windows Server version 20H2 10.0.0 before 10.0.19041.1348
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 10.0.19041.1348
- 10.0.19042.1348
- 10.0.19043.1348
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 10.0.19041.1348, 10.0.19042.1348, 10.0.19043.1348. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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