Summary

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-2017-0281.

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

Improvements and fixes

This security update contains the following improvements:

  • Translates some terms in multiple languages to make sure that the meaning is accurate.

     

This security update fixes the following nonsecurity issues:

  • There is no option to update a sender's certificate in the saved contacts.

     

  • When you select Open on  the File menu in Excel 2016, Excel 2016 may crash intermittently.

     

 

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.

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: May 9, 2017.

Security update replacement information

This security update replaces the following previously released security update:

3178702Description of the security update for Office 2016: April 11, 2017

 

File hash information

Package name

Package hash SHA 1

Package hash SHA 2

mso2016-kb3191881-fullfile-x86-glb.exe

4B21112D6BAF88E557D8CFA3F943F3C73EC42FD3

699C247130007595830994678863901BA809123BDC20BB9162A03EA9CEA17934

mso2016-kb3191881-fullfile-x64-glb.exe

B07EB4D735C6DE5BAED88B72EE128F62C7945273

5FB8DD58276CE29F0BDEDF5A05E92F6FE09F345C60E8D4CF6A7A29F4C0A71BA5

File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table.

For all supported x86-based versions of Office 2016

File identifier

File name

File version

File size

Date

Time

firstrun.exe

firstrun.exe

16.0.4534.1000

770248

12-Apr-17

03:18

msointl.dll.x86.1025

msointl.dll

16.0.4534.1000

3285752

12-Apr-17

03:23

msointl.dll.x86.1026

msointl.dll

16.0.4534.1000

1883896

12-Apr-17

03:23

msointl.dll.x86.1027

msointl.dll

16.0.4534.1000

1815800

12-Apr-17

03:42

msointl.dll.x86.1029

msointl.dll

16.0.4534.1000

1925880

12-Apr-17

03:24

msointl.dll.x86.1030

msointl.dll

16.0.4534.1000

1755384

12-Apr-17

03:24

msointl.dll.x86.1031

msointl.dll

16.0.4534.1000

1946360

12-Apr-17

03:24

msointl.dll.x86.1032

msointl.dll

16.0.4534.1000

2054904

12-Apr-17

03:24

msointl.dll.x86.3082

msointl.dll

16.0.4534.1000

1823992

12-Apr-17

03:24

msointl.dll.x86.1061

msointl.dll

16.0.4534.1000

1729272

12-Apr-17

03:23

msointl.dll.x86.1069

msointl.dll

16.0.4534.1000

1738496

12-Apr-17

03:42

msointl.dll.x86.1035

msointl.dll

16.0.4534.1000

1735928

12-Apr-17

03:24

msointl.dll.x86.1036

msointl.dll

16.0.4534.1000

1973000

12-Apr-17

03:24

msointl.dll.x86.1110

msointl.dll

16.0.4534.1000

1772280

12-Apr-17

03:42

msointl.dll.x86.1095

msointl.dll

16.0.4534.1000

1828088

12-Apr-17

03:42

msointl.dll.x86.1037

msointl.dll

16.0.4534.1000

2905792

12-Apr-17

03:24

msointl.dll.x86.1081

msointl.dll

16.0.4534.1000

1949944

12-Apr-17

03:24

msointl.dll.x86.1050

msointl.dll

16.0.4534.1000

1739512

12-Apr-17

03:24

msointl.dll.x86.1038

msointl.dll

16.0.4534.1000

1949432

12-Apr-17

03:23

msointl.dll.x86.1057

msointl.dll

16.0.4534.1000

1619704

12-Apr-17

03:23

msointl.dll.x86.1040

msointl.dll

16.0.4534.1000

1764608

12-Apr-17

03:24

msointl.dll.x86.1041

msointl.dll

16.0.4534.1000

2010360

12-Apr-17

03:23

msointl.dll.x86.1087

msointl.dll

16.0.4534.1000

2101496

12-Apr-17

03:24

msointl.dll.x86.1099

msointl.dll

16.0.4534.1000

1938168

12-Apr-17

03:42

msointl.dll.x86.1042

msointl.dll

16.0.4534.1000

2766584

12-Apr-17

03:24

msointl.dll.x86.1063

msointl.dll

16.0.4534.1000

1843448

12-Apr-17

03:24

msointl.dll.x86.1062

msointl.dll

16.0.4534.1000

1829624

12-Apr-17

03:24

msointl.dll.x86.1086

msointl.dll

16.0.4534.1000

1647352

12-Apr-17

03:23

msointl.dll.x86.1044

msointl.dll

16.0.4534.1000

1719032

12-Apr-17

03:24

msointl.dll.x86.1043

msointl.dll

16.0.4534.1000

1768696

12-Apr-17

03:24

msointl.dll.x86.1045

msointl.dll

16.0.4534.1000

1915128

12-Apr-17

03:24

msointl.dll.x86.1046

msointl.dll

16.0.4534.1000

1827064

12-Apr-17

03:24

msointl.dll.x86.2070

msointl.dll

16.0.4534.1000

1833720

12-Apr-17

03:24

msointl.dll.x86.1048

msointl.dll

16.0.4534.1000

1960184

12-Apr-17

03:24

msointl.dll.x86.1049

msointl.dll

16.0.4534.1000

1901304

12-Apr-17

03:24

msointl.dll.x86.1051

msointl.dll

16.0.4534.1000

1969400

12-Apr-17

03:23

msointl.dll.x86.1060

msointl.dll

16.0.4534.1000

1805560

12-Apr-17

03:23

msointl.dll.x86.2074

msointl.dll

16.0.4528.1000

1763584

11-Apr-17

11:25

msointl.dll.x86.9242

msointl.dll

16.0.4534.1000

1792760

12-Apr-17

03:24

msointl.dll.x86.1053

msointl.dll

16.0.4534.1000

1732344

12-Apr-17

03:24

msointl.dll.x86.1054

msointl.dll

16.0.4534.1000

1825016

12-Apr-17

03:24

msointl.dll.x86.1055

msointl.dll

16.0.4534.1000

1996536

12-Apr-17

03:24

msointl.dll.x86.1058

msointl.dll

16.0.4534.1000

1889528

12-Apr-17

03:24

msointl.dll.x86.1066

msointl.dll

16.0.4534.1000

2003200

12-Apr-17

03:23

msointl.dll.x86.2052

msointl.dll

16.0.4534.1000

2320072

12-Apr-17

03:24

msointl.dll.x86.1028

msointl.dll

16.0.4534.1000

2327232

12-Apr-17

03:24

msores.dll

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:36

msores.dll.x86

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:44

mso.dll.x86

mso.dll

16.0.4534.1000

14370048

12-Apr-17

03:18

msointl.dll.x86.1033

msointl.dll

16.0.4528.1000

1537280

11-Apr-17

12:35

For all supported x64-based versions of Office 2016

File identifier

File name

File version

File size

Date

Time

firstrun.exe

firstrun.exe

16.0.4534.1000

815296

12-Apr-17

03:20

msointl.dll.x64.1025

msointl.dll

16.0.4534.1000

3323128

12-Apr-17

03:47

msointl.dll.x64.1026

msointl.dll

16.0.4534.1000

1907960

12-Apr-17

03:24

msointl.dll.x64.1027

msointl.dll

16.0.4534.1000

1839864

12-Apr-17

03:40

msointl.dll.x64.1029

msointl.dll

16.0.4534.1000

1949944

12-Apr-17

03:47

msointl.dll.x64.1030

msointl.dll

16.0.4534.1000

1779968

12-Apr-17

03:47

msointl.dll.x64.1031

msointl.dll

16.0.4534.1000

1970936

12-Apr-17

03:46

msointl.dll.x64.1032

msointl.dll

16.0.4534.1000

2079480

12-Apr-17

03:47

msointl.dll.x64.3082

msointl.dll

16.0.4534.1000

1848576

12-Apr-17

03:46

msointl.dll.x64.1061

msointl.dll

16.0.4534.1000

1753344

12-Apr-17

03:24

msointl.dll.x64.1069

msointl.dll

16.0.4534.1000

1762552

12-Apr-17

03:40

msointl.dll.x64.1035

msointl.dll

16.0.4534.1000

1760512

12-Apr-17

03:47

msointl.dll.x64.1036

msointl.dll

16.0.4534.1000

1997072

12-Apr-17

03:46

msointl.dll.x64.1110

msointl.dll

16.0.4534.1000

1796856

12-Apr-17

03:40

msointl.dll.x64.1095

msointl.dll

16.0.4534.1000

1852672

12-Apr-17

03:41

msointl.dll.x64.1037

msointl.dll

16.0.4534.1000

2942656

12-Apr-17

03:47

msointl.dll.x64.1081

msointl.dll

16.0.4534.1000

1974520

12-Apr-17

03:47

msointl.dll.x64.1050

msointl.dll

16.0.4534.1000

1764096

12-Apr-17

03:47

msointl.dll.x64.1038

msointl.dll

16.0.4534.1000

1973496

12-Apr-17

03:24

msointl.dll.x64.1057

msointl.dll

16.0.4534.1000

1643776

12-Apr-17

03:24

msointl.dll.x64.1040

msointl.dll

16.0.4534.1000

1788664

12-Apr-17

03:46

msointl.dll.x64.1041

msointl.dll

16.0.4534.1000

2034424

12-Apr-17

03:46

msointl.dll.x64.1087

msointl.dll

16.0.4534.1000

2126072

12-Apr-17

03:47

msointl.dll.x64.1099

msointl.dll

16.0.4534.1000

1962240

12-Apr-17

03:41

msointl.dll.x64.1042

msointl.dll

16.0.4534.1000

2791168

12-Apr-17

03:46

msointl.dll.x64.1063

msointl.dll

16.0.4534.1000

1867512

12-Apr-17

03:47

msointl.dll.x64.1062

msointl.dll

16.0.4534.1000

1853696

12-Apr-17

03:47

msointl.dll.x64.1086

msointl.dll

16.0.4534.1000

1671416

12-Apr-17

03:24

msointl.dll.x64.1044

msointl.dll

16.0.4534.1000

1743096

12-Apr-17

03:47

msointl.dll.x64.1043

msointl.dll

16.0.4534.1000

1793272

12-Apr-17

03:47

msointl.dll.x64.1045

msointl.dll

16.0.4534.1000

1939200

12-Apr-17

03:47

msointl.dll.x64.1046

msointl.dll

16.0.4534.1000

1851640

12-Apr-17

03:47

msointl.dll.x64.2070

msointl.dll

16.0.4534.1000

1858296

12-Apr-17

03:47

msointl.dll.x64.1048

msointl.dll

16.0.4534.1000

1984760

12-Apr-17

03:47

msointl.dll.x64.1049

msointl.dll

16.0.4534.1000

1925880

12-Apr-17

03:47

msointl.dll.x64.1051

msointl.dll

16.0.4534.1000

1993464

12-Apr-17

03:24

msointl.dll.x64.1060

msointl.dll

16.0.4534.1000

1830136

12-Apr-17

03:24

msointl.dll.x64.2074

msointl.dll

16.0.4534.1000

1788152

12-Apr-17

03:47

msointl.dll.x64.9242

msointl.dll

16.0.4534.1000

1816824

12-Apr-17

03:47

msointl.dll.x64.1053

msointl.dll

16.0.4534.1000

1756920

12-Apr-17

03:47

msointl.dll.x64.1054

msointl.dll

16.0.4534.1000

1849080

12-Apr-17

03:47

msointl.dll.x64.1055

msointl.dll

16.0.4534.1000

2021112

12-Apr-17

03:47

msointl.dll.x64.1058

msointl.dll

16.0.4534.1000

1913592

12-Apr-17

03:47

msointl.dll.x64.1066

msointl.dll

16.0.4534.1000

2027768

12-Apr-17

03:24

msointl.dll.x64.2052

msointl.dll

16.0.4534.1000

2344128

12-Apr-17

03:46

msointl.dll.x64.1028

msointl.dll

16.0.4534.1000

2351296

12-Apr-17

03:46

msointl.dll.x86.1025

msointl.dll

16.0.4534.1000

3285752

12-Apr-17

03:23

msointl.dll.x86.1026

msointl.dll

16.0.4534.1000

1883896

12-Apr-17

03:23

msointl.dll.x86.1029

msointl.dll

16.0.4534.1000

1925880

12-Apr-17

03:24

msointl.dll.x86.1030

msointl.dll

16.0.4534.1000

1755384

12-Apr-17

03:24

msointl.dll.x86.1031

msointl.dll

16.0.4534.1000

1946360

12-Apr-17

03:24

msointl.dll.x86.1032

msointl.dll

16.0.4534.1000

2054904

12-Apr-17

03:24

msointl.dll.x86.3082

msointl.dll

16.0.4534.1000

1823992

12-Apr-17

03:24

msointl.dll.x86.1061

msointl.dll

16.0.4534.1000

1729272

12-Apr-17

03:23

msointl.dll.x86.1035

msointl.dll

16.0.4534.1000

1735928

12-Apr-17

03:24

msointl.dll.x86.1036

msointl.dll

16.0.4534.1000

1973000

12-Apr-17

03:24

msointl.dll.x86.1037

msointl.dll

16.0.4534.1000

2905792

12-Apr-17

03:24

msointl.dll.x86.1081

msointl.dll

16.0.4534.1000

1949944

12-Apr-17

03:24

msointl.dll.x86.1050

msointl.dll

16.0.4534.1000

1739512

12-Apr-17

03:24

msointl.dll.x86.1038

msointl.dll

16.0.4534.1000

1949432

12-Apr-17

03:23

msointl.dll.x86.1057

msointl.dll

16.0.4534.1000

1619704

12-Apr-17

03:23

msointl.dll.x86.1040

msointl.dll

16.0.4534.1000

1764608

12-Apr-17

03:24

msointl.dll.x86.1041

msointl.dll

16.0.4534.1000

2010360

12-Apr-17

03:23

msointl.dll.x86.1087

msointl.dll

16.0.4534.1000

2101496

12-Apr-17

03:24

msointl.dll.x86.1042

msointl.dll

16.0.4534.1000

2766584

12-Apr-17

03:24

msointl.dll.x86.1063

msointl.dll

16.0.4534.1000

1843448

12-Apr-17

03:24

msointl.dll.x86.1062

msointl.dll

16.0.4534.1000

1829624

12-Apr-17

03:24

msointl.dll.x86.1086

msointl.dll

16.0.4534.1000

1647352

12-Apr-17

03:23

msointl.dll.x86.1044

msointl.dll

16.0.4534.1000

1719032

12-Apr-17

03:24

msointl.dll.x86.1043

msointl.dll

16.0.4534.1000

1768696

12-Apr-17

03:24

msointl.dll.x86.1045

msointl.dll

16.0.4534.1000

1915128

12-Apr-17

03:24

msointl.dll.x86.1046

msointl.dll

16.0.4534.1000

1827064

12-Apr-17

03:24

msointl.dll.x86.2070

msointl.dll

16.0.4534.1000

1833720

12-Apr-17

03:24

msointl.dll.x86.1048

msointl.dll

16.0.4534.1000

1960184

12-Apr-17

03:24

msointl.dll.x86.1049

msointl.dll

16.0.4534.1000

1901304

12-Apr-17

03:24

msointl.dll.x86.1051

msointl.dll

16.0.4534.1000

1969400

12-Apr-17

03:23

msointl.dll.x86.1060

msointl.dll

16.0.4534.1000

1805560

12-Apr-17

03:23

msointl.dll.x86.2074

msointl.dll

16.0.4528.1000

1763584

11-Apr-17

11:25

msointl.dll.x86.9242

msointl.dll

16.0.4534.1000

1792760

12-Apr-17

03:24

msointl.dll.x86.1053

msointl.dll

16.0.4534.1000

1732344

12-Apr-17

03:24

msointl.dll.x86.1054

msointl.dll

16.0.4534.1000

1825016

12-Apr-17

03:24

msointl.dll.x86.1055

msointl.dll

16.0.4534.1000

1996536

12-Apr-17

03:24

msointl.dll.x86.1058

msointl.dll

16.0.4534.1000

1889528

12-Apr-17

03:24

msointl.dll.x86.1066

msointl.dll

16.0.4534.1000

2003200

12-Apr-17

03:23

msointl.dll.x86.2052

msointl.dll

16.0.4534.1000

2320072

12-Apr-17

03:24

msointl.dll.x86.1028

msointl.dll

16.0.4534.1000

2327232

12-Apr-17

03:24

conversion.office.msores.dll

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:38

msores.dll

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:36

ppt.conversion.msores.dll

msores.dll

16.0.4435.1000

81666816

ppt.edit.msores.dll

msores.dll

16.0.4435.1000

81666816

wac.office.msores.dll

msores.dll

16.0.4435.1000

81666816

msores.dll

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:36

msores.dll.x86

msores.dll

16.0.4435.1000

81666816

11-Apr-17

12:44

mso.dll.x64

mso.dll

16.0.4534.1000

19806464

12-Apr-17

03:20

mso.dll.x86

mso.dll

16.0.4534.1000

14370048

12-Apr-17

03:18

msointl.dll.x64.1033

msointl.dll

16.0.4528.1000

1561848

11-Apr-17

12:39

msointl.dll.x86.1033

msointl.dll

16.0.4528.1000

1537280

11-Apr-17

12:35

How to get help and support for this security update

Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

Propose a feature or provide feedback on Office Core: Office User Voice portal

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