Microsoft Internet Explorer 6 for Windows XP SP2 and SP3 and Server 2003 SP2 allows remote attackers to execute arbitrary code via unspecified DHTML function calls related to a tr element and the "insertion, deletion and attributes of a table cell," which trigger memory corruption when the window is destroyed, aka "DHTML Object Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5554
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-019
http://www.vupen.com/english/advisories/2009/1538
http://www.us-cert.gov/cas/techalerts/TA09-160A.html
http://www.securitytracker.com/id?1022350
http://www.securityfocus.com/archive/1/504207/100/0/threaded