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This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see
Microsoft Security Bulletin MS16-133. Microsoft Office 2016 for Mac includes versions of Microsoft Word, Excel, and PowerPoint that are designed for the Mac. The November 15, 2016, update provides fixes for issues in the Office 2016 for Mac Suite that affect Word, Excel, and PowerPoint.


For a complete list of affected versions of Microsoft Office software, see 3199168.

Improvements and fixes

This update provides the following fixes and improvements.


  • Find and fix accessibility issues that occur when composing messages or invitations by using the Accessibility Checker.

Microsoft AutoUpdate 3.8.1

  • Microsoft AutoUpdate includes a new option to automatically detect, download, and install updates.

  • Fixes an issue where Microsoft AutoUpdate crashes when older versions of Microsoft Silverlight are installed.

How to obtain and install the update

Method 1: Microsoft AutoUpdate for Mac

This update is available from Microsoft AutoUpdate. AutoUpdate is provided together with Office. It automatically keeps Microsoft software up-to-date. To use AutoUpdate, start a Microsoft Office program, and then click Check for Updates on the Help menu.

Method 2: Microsoft Download Center

This update is available for download and installation from the Microsoft Download Center:

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services Microsoft scanned these files for viruses. Microsoft used the most current virus-detection software that was available on the date that the files were posted. The files are stored on security-enhanced servers that help prevent any unauthorized changes to the files.

More Information

See Office 2016 for Mac upgrade to 64-bit for more information.

Security update deployment information

For deployment information about this update, see
Microsoft Knowledge Base article 3199168.

Update replacement information

This security update replaces security update 3193438.

Security solutions for IT professionals:
TechNet Security Troubleshooting and Support

Local support according to your country:
International Support

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