tag
Vsock
CVE-2025-21756
binary
HIGH 7.8
Linux vsock Use-After-Free VM Escape (CVE-2025-21756)
CVE-2025-21756 is a use-after-free vulnerability in the Linux kernel's vsock (virtual socket) subsystem. An attacker with code execution inside a virtual machine can exploit this bug to escape the VM boundary and gain root-level code execution on the…
Patched
2026-05-17