CVE-2026-57092: A CVSS 9.9 Flaw in Hyper-V VMSwitch Lets a Guest VM Own the Host A use-after-free in Hyper-V VMSwitch lets an authorized user inside a guest VM escalate to kernel code execution on the host. Patched July 2026, confirm you actually applied it. Oct 13, 2026 5 min read Virtualization
