Unspecified vulnerability in Internet Explorer 5.01 and 6 SP1 allows remote attackers to execute arbitrary code via crafted Cascading Style Sheets (CSS) strings that trigger memory corruption during parsing, related to use of out-of-bounds pointers.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1673
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-045
http://www.vupen.com/english/advisories/2007/2869
http://www.us-cert.gov/cas/techalerts/TA07-226A.html
http://www.securityfocus.com/bid/25288
http://www.nsfocus.com/english/homepage/research/0701.htm