Description of the security update for Office 2010: August 14, 2018

Applies to: Microsoft Office 2010 Service Pack 2


This security update resolves vulnerabilities in Microsoft Office that could allow information disclosure if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8378.

Note To apply this security update, you must have the release version of Service Pack 2 for Office 2010 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2010. It doesn't apply to the Office 2010 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.

Known issues in this security update

After you install this security update, Word 2010 may crash. To resolve this problem, install the December 4, 2018, update for Office 2010 (KB4227172).

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: August 14, 2018.

Security update replacement information

This security update replaces previously released security update KB 3118389.

File hash information

File name SHA1 hash SHA256 hash
offowc2010-kb3213636-fullfile-x86-glb.exe 819B1D668AEC6FB2DC1F85D07837D0631D2B8F1F 965A6ABCFEF64DE01F5D46240630F44125CAE502BAAD1E2888F6B0AC3D20B125
offowc2010-kb3213636-fullfile-x64-glb.exe 2CEFE9CF2F18BDD9720A85E7A3FC51C3EE6EAE52 873DD8A25D8CEB6CF72E484A1ED363968C9AC5475154E7791003E45E5ED336D1

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

For all supported x86-based versions of Office 2010

File identifier File name File version File size Date Time
offowc.dll offowc.dll 14.0.7212.5000 7,291,568 18-Jul-2018 07:05

For all supported x64-based versions of Office 2010

File identifier File name File version File size Date Time
offowc.dll offowc.dll 14.0.7212.5000 9,849,896 18-Jul-2018 06:37

How to get help and support for this security update

Help for installing updates: Windows Update: FAQ

Security solutions for IT professionals: TechNet 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