A security flaw has surfaced in Microsoft Word that is so severe that Microsoft is recommending you not open or save Word documents until a patch is available.
…the flaw can be exploited if a user simply opens a rigged Word document.
Affected software versions include Microsoft Word 2000, Microsoft Word 2002, Microsoft Office Word 2003, Microsoft Word Viewer 2003, Microsoft Word 2004 for Mac and Microsoft Word 2004 v. X for Mac. The Microsoft Works 2004, 2005 and 2006 suites are also affected because they include Microsoft Word.
There are no pre-patch workarounds available. Microsoft suggests that users “not open or save Word files,” even from trusted sources.
We suggest you do as they say. Forever.