Multiple integer overflows in the Microsoft (1) JScript 5.6 through 5.8 and (2) VBScript 5.6 through 5.8 scripting engines allow remote attackers to execute arbitrary code via a crafted web page, aka "Scripting Memory Reallocation Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-031
http://secunia.com/advisories/44162
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12673
http://www.securitytracker.com/id?1025333