MS16-088: Description of the security update for Outlook 2013: July 12, 2016

Applies to: Microsoft Office 2013 Service Pack 1


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 MS16-088.

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft Office 2013 installed on the computer.

For a complete list of affected versions of Microsoft Office software, see Microsoft Knowledge Base article KB3170008.

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issues:
  • Provides a clearer message to the attendees when an attendee of a meeting request proposes a new time for the meeting in Outlook 2013.
  • When you click the Meeting button to create a meeting request for a contact in the Contacts hub in Outlook 2013, the "Unknown Error" error message is displayed.
  • Assume that you open a calendar in a new window in Outlook 2013. When you open another calendar in the new window, the calendar can't be updated to display the information.
  • Assume that you create a recurring meeting by using a time zone that's different from the local time zone. Then, you open one of the occurrences and create an exceptional occurrence by using a different start time. You can't find the exception by running Outlook Object Model scripts.
  • When you use the Task Peek function in Outlook 2013, Outlook 2013 crashes.

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see the "Turn on automatic updating in Control Panel" section of this Safety & Security Center article.

Method 2: Microsoft Download Center

You can get the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

More Information

Security update deployment information

For deployment information about this update, see Microsoft Knowledge Base article KB3170008.

Security update replacement information

This security update replaces previously released security update KB3114829.

File hash information

Package NamePackage Hash SHA 1Package Hash SHA 2