Description of the security update for Office 2016: September 12, 2023 (KB5002100)

Summary

This security update resolves a Microsoft Office spoofing vulnerability. To learn more about the vulnerability, see ​​Microsoft Common Vulnerabilities and Exposures CVE-2023-41764.

**Note:**To apply this security update, you must have the release version of Microsoft Office 2016 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn’t apply to the Office 2016 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.

• Download security update 5002100 for the 32-bit version of Office 2016
• Download security update 5002100 for the 64-bit version of Office 2016

More information

Security update deployment information

For deployment information about this update, see Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 4486670.

File hash information

File name		SHA256 hash
msodll99l2016-kb5002100-fullfile-x86-glb.exe		51277D6091700A28777005808E93315EC6A32B1D1D686DA96F118B348A900087
msodll99l2016-kb5002100-fullfile-x64-glb.exe		321A5095CF2456B4B4CACEE2C8E76CB32B52759500D3B5EEC66DF742E47F3E48

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.

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For all supported x86-based versions of Office 2016

File identifier	File name	File version	File size	Date	Time
mso99lres.dll	mso99lres.dll	16.0.4684.1000	9501424	15-Aug-23	03:47
mso99lres.dll.x86	mso99lres.dll	16.0.4684.1000	9501424	15-Aug-23	03:51
mso99lwin32client.dll.x64	mso99lwin32client.dll	16.0.5413.1000	8185408	17-Aug-23	08:39
xlsrv.ecs.mso99lwin32client.dll	mso99lwin32client.dll	16.0.5413.1000	8185408
mso99lwin32client.dll.x86	mso99lwin32client.dll	16.0.5413.1000	5878440	17-Aug-23	08:38

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For all supported x64-based versions of Office 2016

File identifier	File name	File version	File size	Date	Time
conversion.office.mso99lres.dll	mso99lres.dll	16.0.4666.1000	9501416	15-Aug-23	03:44
mso99lres.dll	mso99lres.dll	16.0.4666.1000	9501416	15-Aug-23	03:44
ppt.conversion.mso99lres.dll	mso99lres.dll	16.0.4666.1000	9501416
ppt.edit.mso99lres.dll	mso99lres.dll	16.0.4666.1000	9501416
wac.office.mso99lres.dll	mso99lres.dll	16.0.4666.1000	9501416
mso99lres.dll	mso99lres.dll	16.0.4684.1000	9501424	15-Aug-23	03:44
mso99lres.dll.x86	mso99lres.dll	16.0.4684.1000	9501424	15-Aug-23	03:51
mso99lwin32client.dll.x64	mso99lwin32client.dll	16.0.5413.1000	8185408	17-Aug-23	08:39
xlsrv.ecs.mso99lwin32client.dll	mso99lwin32client.dll	16.0.5413.1000	8185408
mso99lwin32client.dll.x86	mso99lwin32client.dll	16.0.5413.1000	5878440	17-Aug-23	08:38

Information about protection and security

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