Microsoft has released security bulletins MS09-017, MS09-021, and MS09-027. This security bulletin contains all the relevant information about the security updates for Microsoft Office 2008 for Mac. To view the complete security bulletin, visit the following Microsoft Web sites:

The Office 2004 for Mac 11.5.5 Update contains changes that improve security. Additionally, this update includes fixes for vulnerabilities that an attacker can use to overwrite the contents of a computer's memory by using malicious code.

Improvements that are included in the update

The Office 2004 for Mac 11.5.5 Update includes the following improvements.

Improvements for all Microsoft Office 2004 for Mac applications

• Security is improved.
  This update fixes vulnerabilities in Office 2004 that an attacker can use to overwrite the contents of your computer's memory with malicious code. For more information, see security bulletins MS09-017, MS09-021, and MS09-027.

Previously released improvements included in this update

This update includes all of the improvements that were released in all previous Office 2004 updates. For more information about the improvements in a previous update, click the following article numbers to view the articles in the Microsoft Knowledge Base:

Prerequisites

Before you install the Office 2004 for Mac 11.5.5 Update, make sure that the computer is running Mac OS X 10.2.8 (Jaguar) or a later version of the Mac OS X operating system.

To verify that the computer meets this prerequisite, click About This Mac on the Apple menu.

How to obtain the update

The following file is available for download from the Microsoft Download Center:

Download the Microsoft Office 2004 for Mac 11.5.5 Update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyID=5557bfb7-ebb4-4c42-8042-41e830c4e550)

Release Date: June 9, 2009

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Note The Office 2004 for Mac 11.5.5 Update is also available from Microsoft AutoUpdate. AutoUpdate is a program that automatically keeps Microsoft software up-to-date. To use AutoUpdate, start a Microsoft Office program. Then, on the Help menu, click Check for Updates.

For more information about resources for Office 2004 for Mac, visit the following Microsoft Web site:

Updated files

This update adds or changes the Office application files that are shown in the following list. After you install the update, you can compare the version numbers of these files to verify that they were installed or updated. To see the version number of a file, select it in the Finder, and then on the File menu, click Get Info. Additionally, you can find the full installation path for each updated file by reviewing the updater log file in the Microsoft Office 2004/Updater Logs folder on your computer.