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kvm
3 posts6–Jul 12, 2026
Januscape: 16-Year-Old UAF in KVM Shadow MMU Crashes Hosts
CVE-2026-53359 (Januscape) is a 16-year-old UAF in KVM's shadow paging code enabling guest-to-host escape; the public PoC reliably panics the host, disrupting all co-located VMs.
kvmvirtualizationlinux-kernelcveJanuscape: 16-Year-Old Critical Linux KVM Escape, PoC Public
CVE-2026-53359 (Januscape) is a critical Linux KVM guest-to-host escape in the shadow MMU, present since 2010; a public PoC causes host kernel panic.
linuxkvmvirtualizationkernel-exploitJanuscape: KVM/x86 Guest-to-Host Escape Flaw (CVE-2026-53359)
Januscape (CVE-2026-53359) is a critical KVM/x86 guest-to-host escape flaw in the shadow MMU, dormant for 16 years and exploitable on both Intel and AMD.
kvmvirtualizationlinux-kernelcve