Summary

This security update resolves a Microsoft Jet Red Database Engine and Access Connectivity Engine remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-28455.

Note: To apply this security update, you must have the release version of Microsoft Access 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.

More information

Security update deployment information

For deployment information about this update, see Security update deployment information: June 8, 2021.

Security update replacement information

This security update replaces previously released security update 4484340.

File hash information

File name

SHA256 hash

access2016-kb4504711-fullfile-x86-glb.exe

A27533F6E0D67A7967ECA094391FA4D94B2C0316F68753E0A6787FC23CAEA170

access2016-kb4504711-fullfile-x64-glb.exe

83F7D029AC1B22EF9341AC9A404D799993E96C36972B7B2478D1EBFB8A710439

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

msacc.olb

msacc.olb

693992

12-May-21

04:35

msaccess.exe

msaccess.exe

16.0.5164.1000

15785256

12-May-21

04:35

soa.dll

soa.dll

16.0.5164.1000

521104

12-May-21

04:35

msain.dll_1029

msain.dll

16.0.4684.1000

1446648

12-May-21

04:22

msain.dll_1030

msain.dll

16.0.4684.1000

1375000

12-May-21

04:22

msain.dll_1031

msain.dll

16.0.4684.1000

1510144

12-May-21

04:22

msain.dll_3082

msain.dll

16.0.4684.1000

1418024

12-May-21

04:22

msain.dll_1061

msain.dll

16.0.4684.1000

1344272

12-May-21

04:22

msain.dll_1035

msain.dll

16.0.4684.1000

1355624

12-May-21

04:22

msain.dll_1036

msain.dll

16.0.4684.1000

1470712

12-May-21

04:22

msain.dll_1050

msain.dll

16.0.4684.1000

1384184

12-May-21

04:22

msain.dll_1038

msain.dll

16.0.4684.1000

1472744

12-May-21

04:22

msain.dll_1040

msain.dll

16.0.4684.1000

1393408

12-May-21

04:22

msain.dll_1041

msain.dll

16.0.4684.1000

1479928

12-May-21

04:22

msain.dll_1087

msain.dll

16.0.4684.1000

1477368

12-May-21

04:22

msain.dll_1062

msain.dll

16.0.4684.1000

1397504

12-May-21

04:22

msain.dll_1086

msain.dll

16.0.4684.1000

1358584

12-May-21

04:22

msain.dll_1044

msain.dll

16.0.4684.1000

1359128

12-May-21

04:22

msain.dll_1045

msain.dll

16.0.4684.1000

1461584

12-May-21

04:22

msain.dll_1046

msain.dll

16.0.4684.1000

1416968

12-May-21

04:22

msain.dll_2070

msain.dll

16.0.4684.1000

1424648

12-May-21

04:22

msain.dll_1048

msain.dll

16.0.4684.1000

1476272

12-May-21

04:22

msain.dll_1051

msain.dll

16.0.4684.1000

1454840

12-May-21

04:22

msain.dll_1060

msain.dll

16.0.4684.1000

1399072

12-May-21

04:22

msain.dll_1053

msain.dll

16.0.4684.1000

1353488

12-May-21

04:22

msain.dll_1055

msain.dll

16.0.4684.1000

1448696

12-May-21

04:22

msain.dll_1058

msain.dll

16.0.4684.1000

1424560

12-May-21

04:22

File identifier

File name

File version

File size

Date

Time

msacc.olb

msacc.olb

694016

12-May-21

04:45

msaccess.exe

msaccess.exe

16.0.5164.1000

20710720

12-May-21

04:45

soa.dll

soa.dll

16.0.5164.1000

648584

12-May-21

04:45

msain.dll_1029

msain.dll

16.0.4513.1000

1446672

12-May-21

04:24

msain.dll_1030

msain.dll

16.0.4600.1000

1375008

12-May-21

04:24

msain.dll_1031

msain.dll

16.0.4513.1000

1510160

12-May-21

04:24

msain.dll_3082

msain.dll

16.0.4513.1000

1418040

12-May-21

04:24

msain.dll_1061

msain.dll

16.0.4513.1000

1344296

12-May-21

04:24

msain.dll_1035

msain.dll

16.0.4513.1000

1355640

12-May-21

04:24

msain.dll_1036

msain.dll

16.0.4513.1000

1470728

12-May-21

04:24

msain.dll_1050

msain.dll

16.0.4513.1000

1384208

12-May-21

04:24

msain.dll_1038

msain.dll

16.0.4513.1000

1472760

12-May-21

04:24

msain.dll_1040

msain.dll

16.0.4513.1000

1393424

12-May-21

04:24

msain.dll_1041

msain.dll

16.0.4513.1000

1479952

12-May-21

04:24

msain.dll_1087

msain.dll

16.0.4513.1000

1477384

12-May-21

04:24

msain.dll_1062

msain.dll

16.0.4513.1000

1397528

12-May-21

04:24

msain.dll_1086

msain.dll

16.0.4513.1000

1358608

12-May-21

04:24

msain.dll_1044

msain.dll

16.0.4513.1000

1359144

12-May-21

04:24

msain.dll_1045

msain.dll

16.0.4513.1000

1461608

12-May-21

04:24

msain.dll_1046

msain.dll

16.0.4513.1000

1416984

12-May-21

04:24

msain.dll_2070

msain.dll

16.0.4513.1000

1424664

12-May-21

04:24

msain.dll_1048

msain.dll

16.0.4513.1000

1476288

12-May-21

04:24

msain.dll_1051

msain.dll

16.0.4513.1000

1454864

12-May-21

04:25

msain.dll_1060

msain.dll

16.0.4513.1000

1399088

12-May-21

04:25

msain.dll_1053

msain.dll

16.0.4513.1000

1353504

12-May-21

04:25

msain.dll_1055

msain.dll

16.0.4513.1000

1448712

12-May-21

04:25

msain.dll_1058

msain.dll

16.0.4513.1000

1424576

12-May-21

04:25

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Any additional feedback? (Optional)

Thank you for your feedback!

×