Summary

This security update resolves a Microsoft Excel security feature bypass vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-42292.

Note To apply this security update, you must have the release version of 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

Note: You have to install KB 5002056 together with this 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: November 9, 2021 (KB5007403).

Security update replacement information

This security update replaces previously released security update 4475514.

File hash information

File name

SHA256 hash

msodll99l2016-kb4486670-fullfile-x86-glb.exe

540D0ABD8629919731454D4F3841D8CFFE0C2DF49167AB3E58A347C73EE758AF

msodll99l2016-kb4486670-fullfile-x64-glb.exe

F8BECCA02B18DC37A3FCC98DCB91D33F2B97D770824D702CB7822EDF8E1E92CA

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.

File identifier

File name

File version

File size

Date

Time

mso99lres.dll

mso99lres.dll

16.0.4684.1000

9501424

21-Oct-21

05:52

mso99lres.dll.x86

mso99lres.dll

16.0.4684.1000

9501424

21-Oct-21

06:00

mso99lwin32client.dll.x64

mso99lwin32client.dll

16.0.5239.1001

8182104

22-Oct-21

11:05

xlsrv.ecs.mso99lwin32client.dll

mso99lwin32client.dll

16.0.5239.1001

8182104

mso99lwin32client.dll.x86

mso99lwin32client.dll

16.0.5239.1001

5875552

22-Oct-21

11:01

File identifier

File name

File version

File size

Date

Time

conversion.office.mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

21-Oct-21

05:53

mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

21-Oct-21

05:52

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

21-Oct-21

05:52

mso99lres.dll.x86

mso99lres.dll

16.0.4684.1000

9501424

21-Oct-21

06:00

mso99lwin32client.dll.x64

mso99lwin32client.dll

16.0.5239.1001

8182104

22-Oct-21

11:05

xlsrv.ecs.mso99lwin32client.dll

mso99lwin32client.dll

16.0.5239.1001

8182104

mso99lwin32client.dll.x86

mso99lwin32client.dll

16.0.5239.1001

5875552

22-Oct-21

11:01

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