At a glance: A KVM vulnerability in the Linux kernel that has existed for over 16 years allows hypervisor escapes and jeopardizes cloud hosts with VM-based architecture.
A security vulnerability present in the KVM code (Kernel Virtual Machine) of the Linux kernel since 2010 enables attackers to break out of virtual machines and compromise host systems. The risk particularly affects cloud infrastructures.
The vulnerability is located in the KVM virtualization function of the Linux kernel and has existed since 2010. It enables attackers to access and manipulate the host kernel from a guest-controlled virtual machine.
For cloud service providers and enterprises with virtualized infrastructure, this vulnerability represents a critical risk: a compromised host can become a springboard for attacks on adjacent VMs or the entire cloud environment. Particularly problematic is the long time between discovery and patch availability.
CISOs should prioritize kernel updates and conduct a risk analysis of existing KVM systems. Segmentation of VM clusters and enhanced host monitoring measures can serve as interim measures to reduce exposure risk until patches are fully deployed.
Source: www.golem.de · Published 7 July 2026
Lumi AI News — AI-assisted curation in accordance with Article 50 EU AI Act. Paraphrase and classification by Lumi News Pipeline v1.7.3.