CVE-2010-3960: Microsoft Windows Server 2008

Medium severity, CVSS 4.9. EPSS: 1.8% chance of exploitation in the next 30 days.

Hyper-V in Microsoft Windows Server 2008 Gold, SP2, and R2 allows guest OS users to cause a denial of service (host OS hang) by sending a crafted encapsulated packet over the VMBus, aka "Hyper-V VMBus Vulnerability."

Affected products

• Microsoft Windows Server 2008: any version; version r2 only

Published 2010-12-16. Last modified 2026-06-16.