Buffer overflow in the H.323 filter of Microsoft Internet Security and Acceleration Server 2000 allows remote attackers to execute arbitrary code in the Microsoft Firewall Service via certain H.323 traffic, as demonstrated by the NISCC/OUSPG PROTOS test suite for the H.225 protocol.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A478
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-001
http://www.uniras.gov.uk/vuls/2004/006489/h323.htm
http://www.securitytracker.com/id?1008698
http://www.securityfocus.com/bid/9408
http://www.securityfocus.com/bid/9406
http://www.kb.cert.org/vuls/id/749342