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New Zapscape KVM Flaw Could Let Privileged L1 Guest Code Escape to Linux Hosts

The Hacker Newsby @TheHackersNews ()3 min read3 · 1 read
Analyze CVE-2026-64561 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-46316
Linux kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry…
9.3<1%
CVE-2026-53359
Linux kernel: KVM: x86
8.8<1%
CVE-2026-64561
Linux kernel: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available Check for a "stale" page fault…
8.8<1%

From the original article

3 min read at thehackernews.com

 Swati Khandelwal  Aug 06, 2026 Virtualization Security / Linux Zapscape , a new Linux kernel vulnerability, could allow an attacker with kernel privileges inside an L1 guest virtual machine (VM) to escape KVM isolation and execute code on the host. The risk applies when nested virtualization is exposed to untrusted guests.

The Hacker News

By @TheHackersNews · thehackernews.com

Read the full article at The Hacker News

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.