Microsoft XML Core Services (MSXML) 3.0 through 6.0 allows remote attackers to execute arbitrary code via the substringData method on a (1) TextNode or (2) XMLDOM object, which causes an integer overflow that leads to a buffer overflow.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2069
http://www.zerodayinitiative.com/advisories/ZDI-07-048/
http://www.securitytracker.com/id?1018559
http://www.securityfocus.com/bid/25301
http://www.securityfocus.com/archive/1/476747/100/0/threaded
http://www.securityfocus.com/archive/1/476527/100/0/threaded