Microsoft Word Malformed Chart Code Execution Vulnerability

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Microsoft Office. Exploitation requires that the attacker coerce the target user into opening a malicious .XLS file. The specific flaw exists during the processing of malformed charts embedded within a Word document. Upon closing the document, certain pointers are corrupted with data direclty from the file. A later dereference of these corrupted pointers can result in code execution.