CVE-2026-50079 · Infrastructure
NO FIX YET
A race condition between checking and using data in the virtio network virtual device lets a guest-side attacker manipulate that device. The flaw can crash the QVM, the virtual machine.
first public Nov 10, 2026 · 1 source
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Hosts that run virtual machines with virtio network devices are the ones to look at, since the attacker must already control a guest. The sources do not name the affected product versions or confirm which hypervisor ships the device, so the exposure of any given host is unknown.
Not affected if no-virtual-machines
Who cares qvm, virtio, virtualization
Unknown from the sources.
No fix yet, per the sources.
Time-of-check Time-of-use (TOCTOU) Race Condition in the virtio network virtual device could allow an attacker in the guest to manipulate the virtual network device causing a crash of the QVM.
This page as .md · .json · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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