Cybersecurity Alerts

Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free Vulnerability

Microsoft Windows Hyper-V NT Kernel Integration VSP contains a use-after-free 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-416

References

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21334
• https://nvd.nist.gov/vuln/detail/CVE-2025-21334