What type of vulnerability allows code execution on the host system from code running on a virtual machine?

The vulnerability that allows code execution on the host system from code running on a virtual machine is known as a VM escape issue. This type of vulnerability occurs when an attacker is able to break out of the confines of a virtual machine environment and execute malicious code on the underlying host system. Such a breach can compromise not only the virtual machine but also the entire host and any other virtual machines running on it.

VM escape exploits the separation and isolation typically provided by virtualization technologies. When the isolation mechanisms are flawed, code executing maliciously in a virtual environment can bypass these restrictions, leading to potential unauthorized access and control over the host system.

Understanding this vulnerability is crucial for maintaining security within virtualized environments, where the integrity and confidentiality of both the virtual machines and the host systems are paramount. Protecting against VM escape issues involves implementing strong isolation measures, regularly updating virtualization software, and employing additional security controls to monitor and defend against such threats.