Multiple serious vulnerabilities have been found in Oracle VM VirtualBox. Malicious users can exploit these vulnerabilities to cause denial of service, affect integrity or obtain sensitive information. These vulnerabilities can be executed remotely and related to Core, OpenSSL and VRDE.
Oracle VM VirtualBox versions earlier than 5.0.28
Oracle VM VirtualBox 5.1 versions earlier than 5.1.8
Update to the latest version
Oracle VM VirtualBox download page