The service pack, Office 2008 for Mac SP1 with version number 12.1.0 and a size of 180MB, has made improvements and enhancements in terms of security, stability, and performance. This includes fixing a vulnerability that allowed attackers to overwrite user memory content using malicious code.
This service pack applies to products such as Office 2008, Office 2008 Home and Student Edition, Office 2008 Special Media Edition, Word 2008, Excel 2008, PowerPoint 2008, and Entourage 2008, and supports Mac OS X 10.4.9 Tiger or higher versions.