With the influx of data centers and the limited amount of server room real estate, virtualization is becoming more common in todays enterprise. Each system consolidated includes an operating system and TCP/IP networking to connect it to the enterprise organization or even to the Internet. With virtual servers, the virtual operating systems are vulnerable to denial of service (DoS) and other attacks, just as they would be on standard systems. The lack of virtual security for these new systems means that DoS or even distributed DoS attacks can be launched within the virtualized environment.”]
Source: https://www.csoonline.com/article/2121965/securing-virtualized-environments.html