This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Office Excel. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of cell formula data in Excel worksheet files. Crafted data in a cell formula can trigger a type confusion condition. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.