CVE-2026-62749: Windows Kernel Elevation of Privilege Vulnerability
This Microsoft advisory covers CVE-2026-62749 in Windows Server 2025.
- CVE-2026-62749
Key facts
- Vendor rating
- High, CVSS 7
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Windows 11 Version 24H2 10.0.26100.0 before 10.0.26100.9168; Windows 11 Version 25H2 10.0.26200.0 before 10.0.26200.9168; Windows 11 version 26H1 10.0.28000.0 before 10.0.28000.2704 and 2 more below
- Fixed in
- KB5120233 (build 10.0.26100.33296), KB5120228 (build 10.0.26100.33222), KB5121003 (build 10.0.26100.9168) and 2 more below
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Windows Kernel Elevation of Privilege Vulnerability
Affected product named by the advisory: Windows Server 2025.
Text from the source record.
- Windows 11 Version 24H2 10.0.26100.0 before 10.0.26100.9168
- Windows 11 Version 25H2 10.0.26200.0 before 10.0.26200.9168
- Windows 11 version 26H1 10.0.28000.0 before 10.0.28000.2704
- Windows Server 2025 10.0.26100.0 before 10.0.26100.33296
- Windows Server 2025 (Server Core installation) 10.0.26100.0 before 10.0.26100.33296
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-62749
Upgrade to a fixed release named by Microsoft:
- KB5120233 (build 10.0.26100.33296)
- KB5120228 (build 10.0.26100.33222)
- KB5121003 (build 10.0.26100.9168)
- KB5120994 (build 10.0.26100.9106)
- KB5121000 (build 10.0.28000.2704)
Vendor guidance
- Install the applicable security update for your platform: KB5120233, KB5120228, KB5121003, KB5120994, KB5121000 (see the Microsoft Update Catalog).
End-of-life dates for Windows Server
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Microsoft Server advisories, August 2026All Microsoft Server advisories
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