Hello, Several vulnerabilities that allow escaping the VM were discovered. Please update to 5.2.6 (or 5.1.32). http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html#AppendixOVIR https://www.techrepublic.com/article/10-new-vm-escape-vulnerabilities-discovered-in-virtualbox/ Regards, Giovanni