There's a new patch in town. Microsoft Office 2008 was updated today
to protect against two privately-reported vulnerabilities
in the handling of Word files; these security risks could have allowed an attacker to execute arbitrary code on your machine. The update also patches Entourage 2008 to prepare for the Web Services edition of the mail and PIM app.
The 154 MB/268 MB (delta or combo) update is available through Microsoft's AutoUpdate tool or via direct download