A component in Microsoft Outlook Express 6 and Windows Mail in Windows Vista does not properly handle certain HTTP headers when processing MHTML protocol URLs, which allows remote attackers to obtain sensitive information from other Internet Explorer domains, aka "URL Parsing Cross Domain Information Disclosure Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2045
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-034
http://www.vupen.com/english/advisories/2007/2154
http://www.us-cert.gov/cas/techalerts/TA07-163A.html
http://www.securitytracker.com/id?1018232
http://www.securitytracker.com/id?1018231
http://www.securityfocus.com/bid/24392
http://www.securityfocus.com/archive/1/472002/100/0/threaded
http://www.securityfocus.com/archive/1/471947/100/0/threaded
http://www.kb.cert.org/vuls/id/682825
http://secunia.com/advisories/25639