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16-Year-Old Linux KVM Flaw Lets Guest VMs Escape to Host on Intel and AMD x86 Systems

📅 July 7, 2026 📰 thehackernews.com 🔍 1 CVE(s) referenced

A newly discovered, 16-year-old vulnerability in Linux's KVM hypervisor (CVE-2026-53359, "Januscape") allows attackers with root access inside a guest VM to reliably crash or potentially take full control of the x86 host—impacting both Intel and AMD systems with nested virtualization enabled—making immediate patching critical for multi-tenant environments.

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CVE-2026-53359

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