threat-intel
Linux Kernel Vulnerability Allows VM Escape on Intel and AMD Systems
Critical
Summary
A long-standing Linux kernel vulnerability, dubbed Januscape (CVE-2026-53359), has been discovered that allows attackers to escape virtual machines and gain root access on the underlying host. This flaw, dormant for 16 years, poses a significant risk to multi-tenant public clouds and can lead to denial-of-service attacks or complete host takeover. The vulnerability was demonstrated as a zero-day and has been patched in mainline.
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