The component for the Virtual DOS Machine (VDM) subsystem in Windows NT 4.0 and Windows 2000 does not properly validate system structures, which allows local users to access protected kernel memory and execute arbitrary code.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1718
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1512
https://exchange.xforce.ibmcloud.com/vulnerabilities/15714
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011
http://www.us-cert.gov/cas/techalerts/TA04-104A.html
http://www.securityfocus.com/bid/10117
http://www.kb.cert.org/vuls/id/783748
http://www.eeye.com/html/Research/Advisories/AD20040413E.html
http://www.ciac.org/ciac/bulletins/o-114.shtml
http://lists.grok.org.uk/pipermail/full-disclosure/2004-April/020070.html