Description of the security update for Word 2013: December 12, 2017

Applies to: Microsoft Office 2013 Service Pack 1Word 2013


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 Common Vulnerabilities and Exposures ADV170021.

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

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2013. It doesn't apply to the Office 2013 Click-to-Run editions, such as Microsoft Office 365 Home (see Determining your Office version).

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 Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 3: 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 security update deployment information: December 12, 2017.

Security update replacement information

This security update replaces the previously released update KB 4011250.

File hash information

Package Name Package Hash SHA 1 Package Hash SHA 2
word2013-kb4011590-fullfile-x86-glb.exe 55A184E66E9FF9DDCB9E6CFE859E8F9EB9983C74 27792345E4E923DE4B82303A2298C785826CA4FACEF702CAD5C117DAC4328BF7
word2013-kb4011590-fullfile-x64-glb.exe D5A275293EE9F3A04EB7E604814D68C3247D5337 A20DEC1B4D7AAA1C8EAE9B4B164237E50CC3525C20757881D2CF7167FDFE8172

File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight-saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files

How to get help and support for this security update

Help for installing updates: Windows Update FAQ

Security solutions for IT professionals: Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

Propose a feature or provide feedback on Office Core: Office User Voice portal