MS15-131: Description of the security update for Word Viewer: December 8, 2015


This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less affected than those who operate by having administrative user rights.

To learn more about these vulnerabilities, see Microsoft Security Bulletin MS15-131.

For a complete list of affected versions of Office software, see Microsoft Knowledge Base article 3116111.

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 turn on automatic updating, see Get security updates automatically.

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 3116111.

Security update replacement information

This security update replaces security update 3101564 that is described in Microsoft Security Bulletin MS15-116.

File hash information
File information
How to get help and support for this security update
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