Vulnerability Description
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 21H2 | < 10.0.19044.5371 |
| Microsoft | Windows 10 22H2 | < 10.0.19045.5371 |
| Microsoft | Windows 11 22H2 | < 10.0.22621.4751 |
| Microsoft | Windows 11 23H2 | < 10.0.22631.4751 |
| Microsoft | Windows 11 24H2 | < 10.0.26100.2894 |
| Microsoft | Windows Server 2022 23H2 | < 10.0.25398.1369 |
| Microsoft | Windows Server 2025 | < 10.0.26100.2894 |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21335PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-US Government Resource
FAQ
What is CVE-2025-21335?
CVE-2025-21335 is a vulnerability with a CVSS score of 7.8 (HIGH). Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
How severe is CVE-2025-21335?
CVE-2025-21335 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21335?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 22H2, Microsoft Windows 11 23H2, Microsoft Windows 11 24H2.