The Microsoft Word WordPerfect document converter included in Microsoft Word has a buffer overflow bug. If the WordPerfect document converter is installed, which by default it is in Office 2000, and a malicious .doc file is opened, there exists the ability for an attacker to execute arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/31585/mswordcon.txt
Source: https://packetstormsecurity.com/files/31585/mswordcon.txt.html