Unspecified vulnerability in Oracle VM VirtualBox 3.0, 3.1, 3.2, and 4.0 through 4.0.8 allows local users to affect confidentiality, integrity, and availability via unknown vectors related to Guest Additions for Windows.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13148
http://www.us-cert.gov/cas/techalerts/TA11-201A.html
http://www.securitytracker.com/id?1025805
http://www.oracle.com/technetwork/topics/security/cpujuly2011-313328.html