Abstract: The virtualization platform is the core infrastructure of cloud computing services, therefore, security research for virtualization platform plays a key role in cloud security. This paper first summarizes the typical architecture and mainstream platform of virtualization, then deeply analyzes the types, impacts and major high-risk events of virtualization platform security vulnerabilities, finally analyzes the virtualization security protection system of mainstream manufacturers and puts forward protection solutions.

Key words: cloud security, virtualization, security vulnerability, security protection