Microsoft Windows Media Player (WMP) 9 through 12 does not properly deallocate objects during a browser reload action, which allows user-assisted remote attackers to execute arbitrary code via crafted media content referenced in an HTML document, aka "Windows Media Player Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6653
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-082