This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document. To learn more about these vulnerabilities, see Microsoft Security Bulletin MS16-097.
For a complete list of affected versions of Microsoft Office software, see Microsoft Knowledge Base article 3177393.
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.