Januscape Flaw in Linux KVM’s MMU Code Enables VM Escape on Intel and AMD

A newly disclosed Linux kernel vulnerability, CVE-2026-53359, dubbed Januscape, has exposed a critical weakness in the Linux Kernel-based Virtual Machine (KVM) hypervisor. The flaw resides in the shadow MMU code and allows attackers to escape a virtual machine (VM), compromise the underlying host, and potentially execute arbitrary code.

First seen on thecyberexpress.com

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