Buffer overflow in mshtml.dll in Microsoft Internet Explorer 6.0.2900.2180, and probably other versions, allows remote attackers to execute arbitrary code via an HTML tag with a large number of script action handlers such as onload and onmouseover, as demonstrated using onclick, aka the "Multiple Event Handler Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1766
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1632
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1599
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1569
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1451
https://exchange.xforce.ibmcloud.com/vulnerabilities/25292
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-013
http://www.vupen.com/english/advisories/2006/1318
http://www.us-cert.gov/cas/techalerts/TA06-101A.html
http://www.securityfocus.com/archive/1/453554/100/0/threaded
http://www.securityfocus.com/archive/1/453436/100/0/threaded
http://www.securityfocus.com/archive/1/428810/100/0/threaded
http://www.kb.cert.org/vuls/id/984473
http://securitytracker.com/id?1015794
http://secunia.com/advisories/19269
http://secunia.com/advisories/18957
http://archives.neohapsis.com/archives/bugtraq/2006-02/0855.html