
CVE-2020-0890 | Windows Hyper-V Denial of Service Vulnerability proof-of-concept code
Hyper-V DoS PoC. This is code files of Visual Studio 2019 driver project.
Set-VMProcessor -VMName <VMName> -ExposeVirtualizationExtensions $true
Bug is present in Hyper-V from Windows Server 2019, Windows 10 with latest patches and Windows 10 insider preview, build 10.0.20206.1000 and early.
Mitigations: Simple disable nested virtualization on untrusted VM. Execute command on host server:
Set-VMProcessor -VMName <VMName> -ExposeVirtualizationExtensions $false