Severity
High
Analysis Summary
CVE-2025-21333 CVSS:7.8
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability.
CVE-2025-21334 CVSS:7.8
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability.
CVE-2025-21335 CVSS:7.8
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability.
Impact
- Gain Access
- Buffer Overflow
- Privilege Escalation
Indicators of Compromise
CVE
CVE-2025-21333
CVE-2025-21334
CVE-2025-21335
Affected Vendors
Microsoft
Affected Products
- Microsoft Windows Server 2022
- Microsoft Windows Server 2025
- Microsoft Windows 11 Version 24H2 for x64-based Systems
- Microsoft Windows 11 Version 24H2 for ARM64-based Systems
- Microsoft Windows 11 Version 23H2 for x64-based Systems
- Microsoft Windows 11 Version 23H2 for ARM64-based Systems
- Microsoft Windows Server 2025 (Server Core installation)
- Microsoft Windows 10 Version 22H2 for x64-based Systems
- Microsoft Windows 11 Version 22H2 for x64-based Systems
- Microsoft Windows 11 Version 22H2 for ARM64-based Systems
- Microsoft Windows 10 Version 21H2 for x64-based Systems
Remediation
Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.