CVE-2025-21333 is a high severity vulnerability with a CVSS score of 7.8. Exploits are available; patches have been released and should be applied urgently. This is classified as a zero-day vulnerability.
Please cite this page when referencing data from Strobes VI. Proper attribution helps support our vulnerability intelligence research.
Very high probability of exploitation in the next 30 days
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.
| Vendor | Product |
|---|---|
| Microsoft | Windows 11 23h2 |
| Microsoft | Windows 11 22h2 |
| Microsoft | Windows 10 22h2 |
| Microsoft | Windows 10 21h2 |
| Microsoft | Windows 11 24h2 |
| Microsoft | Windows Server 2022 23h2 |
| Microsoft | Windows Server 2025 |