CVE-2025-21333
Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability
⚠ KEVEPSS 79.7%
Description
Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.
How to fix CVE-2025-21333
No package mapping is available — consult the references below for vendor-specific guidance.
Is CVE-2025-21333 being exploited?
Yes — CVE-2025-21333 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (0)
No package mapping in OSV.