Description of the security update for Excel 2013: October 8, 2019

Applies to: Microsoft Office 2013 Service Pack 1Excel 2013


This security update resolves a remote code execution vulnerability that exists in Microsoft Excel software if the software fails to correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1327 and Microsoft Common Vulnerabilities and Exposures CVE-2019-1331.

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 What version of Office am I using?).

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 standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone 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: October 8, 2019.

Security update replacement information

This security update replaces previously released security update 4475566.

File hash information

File name SHA1 hash SHA256 hash
excel2013-kb4484123-fullfile-x86-glb.exe 8CDB33C223B0F6177097FA2989E5C6916E5C4E98 3F4EC3295245DDB61BE909EAD56DFE36AC3CB20C1FAA9CFB807A9B1A77B2E9BE
excel2013-kb4484123-fullfile-x64-glb.exe 49F4E92D5246E07B3255F11BFB456BC61114DEB0 E054CD2FDE3C07895D1F43798E211CC81078D1DA3EDAE192994AC5FDB1700662

File information

The English (United States) version of this software update installs files that have the 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: Protect yourself online

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

Local support according to your country: International Support