Tag: xsa 523

Xen Hypervisor Flaws Expose Guest VMs to Unauthorized Memory Access

A single compromised guest can break free from its isolation and take control of the entire host, thanks to two critical flaws in the Xen Hypervisor that allow unauthorized memory access. This vulnerability, tracked as XSA-523, lets malicious guest virtual machines read and write the memory of other VMs on the same host.