Are you using Azure? A newly published Hyper-V bug could possibly crash ‘big portions of Azure cloud infrastructure’.
Security researchers have posted proof of concept code that exploits a recently patched vulnerability in Microsoft’s Hyper-V hypervisor. The bug enables code in the guest to crash the host, and in some circumstances compromise the host’s security.
The Register
Source: Hyper-V bug that could crash ‘big portions of Azure cloud infrastructure’: Code published