The kernel in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly translate a registry key's virtual path to its real path, which allows local users to cause a denial of service (reboot) via a crafted application, aka "Windows Virtual Path Parsing Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6770
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-021
http://www.us-cert.gov/cas/techalerts/TA10-103A.html
http://www.securitytracker.com/id?1023850