Just a month after releasing a security update to Microsoft Office 2004 (see "Microsoft Office 2004 11.3.6 Addresses Security Issues [1]," 2007-07-16), Microsoft has done it again, releasing Microsoft Office 2004 for Mac 11.3.7 Update [2]. The 8.5 MB update, which you can also install directly from within the Microsoft AutoUpdate utility, reportedly fixes a vulnerability that an attacker could use "to overwrite the contents of your computer's memory with malicious code." The 11.3.7 update requires that you have already updated to 11.3.6, which in turn requires 11.3.5. Just use the Microsoft AutoUpdate utility, which does all the heavy lifting for you.
[1]: http://db.tidbits.com/article/9078
[2]: http://www.microsoft.com/mac/downloads.aspx?pid=download&location=/mac/download/Office2004/Office2004_1137.xml