Database/Kernel, userspace & hypervisor
Microsoft Hyper-V: Heap-based buffer overflow in the NT Kernel Integration VSP
CVE-2025-21333Kernel, userspace & hypervisorKnown exploitedcurated
Impact
Heap-based buffer overflow in the NT Kernel Integration VSP - elevation of privilege, exploited in the wild [KEV]
Who can reach it
Local user on the Hyper-V host (or a container using the VSP path)
What to do
Windows update + host reboot with VM live-migration
References
This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.