Cybersecurity Alerts

Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability

Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.

Required Action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness Classification

CWE-122

References

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21333
• https://nvd.nist.gov/vuln/detail/CVE-2025-21333