16-Year-Old Linux KVM Vulnerability Allows Malicious Guest to Corrupt Host Kernel Memory

A newly disclosed Linux Kernel-based Virtual Machine (KVM) vulnerability, tracked as CVE-2026-53359 and dubbed “Januscape,” exposes a critical flaw that allows a malicious guest to corrupt host kernel memory, breaking the fundamental isolation guarantees of virtualization. The issue, which remained unnoticed for nearly 16 years, affects...

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