Description of the security update for Microsoft Office Compatibility Pack Service Pack 3: December 11, 2018

Applies to: Office Compatibility Pack Service Pack 3


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 CVE-2018-8597 and Microsoft Common Vulnerabilities and Exposures CVE-2018-8627.

Note To apply this security update, you must have the Office Compatibility Pack installed on a computer that is running Windows Embedded POSReady 2009.

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.

Update information

Security update deployment information

For deployment information about this update, see security update deployment information: December 11, 2018.

Security update replacement information

This security update replaces previously released security update KB 4461518.

File information

File hash information

File nameSHA1 hashSHA256 hash

File information

The English (United States) version of this software updateinstalls files that have the attributes that are listed in the followingtables. The dates and times for these files are listed in Coordinated UniversalTime (UTC). The dates and times for these files on your local computer aredisplayed in your local time together with your current daylight saving time(DST) bias. Additionally, the dates and times may change when you performcertain operations on the files.

      For all supported x86-based versions of Microsoft Office Compatibility Pack Service Pack 3

File identifierFile nameFile versionFile sizeDateTime

How to get help and support for this security update

Protect yourself online and at home: Windows Security support 

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

Local support according to your country: International Support