Microsoft posted a Microsoft Office for Mac 11.3.7 Update on Tuesday. The update fixes a vulnerability that could allow an attacker to overwrite the contents of memory with malicious code.
The patch is applicable to: Office 2004 Standard Edition, Office 2004 Student and Teacher Edition, Office 2004 Professional Edition, Word 2004, Excel 2004, PowerPoint 2004, Entourage 2004, according to Microsoft.
The patch is available at Mactopiais download page under the "Office 2004" heading.