Windows Kernel Elevation of Privilege Vulnerability
This high-severity Microsoft Server advisory covers CVE-2024-21338 affecting Windows Server 2019 (Server Core installation), Windows Server 2022, 23H2 Edition (Server Core installation).
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Summary
Windows Kernel Elevation of Privilege Vulnerability
Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server 2022, 23H2 Edition (Server Core installation).
CISA Known Exploited Vulnerability
- Listed:
- Mar 4, 2024 · federal remediation due Mar 25, 2024
- Required action:
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Ransomware use:
- Known
KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.
- Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.5458
- Windows 10 Version 1809 10.0.0 before 10.0.17763.5458
- Windows Server 2019 10.0.17763.0 before 10.0.17763.5458
- Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.5458
- Windows Server 2022 10.0.20348.0 before 10.0.20348.2322
- Windows 11 version 21H2 10.0.0 before 10.0.22000.2777
- Windows 10 Version 21H2 10.0.19043.0 before 10.0.19044.4046
- Windows 11 version 22H2 10.0.22621.0 before 10.0.22621.3155
- Windows 10 Version 22H2 10.0.19045.0 before 10.0.19045.4046
- Windows 11 version 22H3 10.0.22631.0 before 10.0.22631.3155
- Windows 11 Version 23H2 10.0.22631.0 before 10.0.22631.3155
- Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 before 10.0.25398.709
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 10.0.17763.5458
- 10.0.20348.2322
- 10.0.22000.2777
- 10.0.19044.4046
- 10.0.22621.3155
- 10.0.19045.4046
- 10.0.22631.3155
- 10.0.25398.709
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 10.0.17763.5458, 10.0.20348.2322, 10.0.22000.2777, 10.0.19044.4046, 10.0.22621.3155, 10.0.19045.4046. 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
Discussion(0)
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