Software
a 9.9 in Windows Hyper-V lets an attacker break out of one VM and take the whole host's network
CVE-2026-57092 is a use-after-free in Windows VMSwitch — the virtual network switch behind Hyper-V. It scores 9.9 because it breaks out of its security boundary. If you run Hyper-V, patch it.
Priya Nair · 2d ago · 9 min