Microsoft Internet Explorer 6, 7, and 8 does not prevent rendering of cached content as HTML, which allows remote attackers to access content from a different (1) domain or (2) zone via unspecified script code, aka "Cross-Domain Information Disclosure Vulnerability," a different vulnerability than CVE-2010-3342.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12055
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090