Description of the security update for Word 2016: January 9, 2018

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 the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Note To apply this security update, you must have the release version of Microsoft Word 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 Determining your Office version).

Improvements and fixes

This security update contains improvements and fixes for the following nonsecurity issues:

  • In a Word 2016 document, when you right-click to select text and then drag it to another location, it does not work.

  • Word 2016 crashes after you open a document that contains ActiveX controls in an Active Document Container.

  • When you use Office add-in-rich APIs to delete the last paragraph in an Office document, the new last paragraph may take some format of the original last paragraph. After you install this update, the new last paragraph will keep its original format unchanged.

  • This update improves Office application startup performance by skipping unnecessary scanning of Microsoft Word documents that are local and not encrypted.

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: January 9, 2018.

Security update replacement information

This security update replaces previously released security update KB 4011575.

File hash information

Package Name

Package Hash SHA 1

Package Hash SHA 2

word2016-kb4011643-fullfile-x64-glb.exe

1284374AA8CD3077130CB8D5AB292590B2623D36

B31ED7D9C07630D183DA8D3AED5FCEDAAF05D28E8BCAD428BA3505D636F2B6E5

word2016-kb4011643-fullfile-x86-glb.exe

D21E8A81C95B0F6AFD8AE9CBFD41FB4C9266B6D4

2557CA2657421D96326930F657FD2FC21B4BCE88CC12509E3CCB12E7474AA3DF

File information

The English version of this security update has the file attributes (or later file 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

wwintl.dll_1025

wwintl.dll

16.0.4471.1000

821432

18-Dec-17

04:08

wwintl.dll_1026

wwintl.dll

16.0.4471.1000

818872

18-Dec-17

04:08

wwintl.dll_1029

wwintl.dll

16.0.4471.1000

874680

18-Dec-17

04:08

wwintl.dll_1030

wwintl.dll

16.0.4549.1000

805568

18-Dec-17

04:08

wwintl.dll_1031

wwintl.dll

16.0.4471.1000

885944

18-Dec-17

04:08

wwintl.dll_1032

wwintl.dll

16.0.4471.1000

876216

18-Dec-17

04:08

wwintl.dll_3082

wwintl.dll

16.0.4471.1000

845496

18-Dec-17

04:08

wwintl.dll_1061

wwintl.dll

16.0.4471.1000

769208

18-Dec-17

04:08

wwintl.dll_1036

wwintl.dll

16.0.4471.1000

881848

18-Dec-17

04:08

wwintl.dll_1081

wwintl.dll

16.0.4471.1000

863416

18-Dec-17

04:08

wwintl.dll_1050

wwintl.dll

16.0.4465.1000

828608

18-Dec-17

04:08

wwintl.dll_1038

wwintl.dll

16.0.4471.1000

884408

18-Dec-17

04:08

wwintl.dll_1057

wwintl.dll

16.0.4471.1000

776888

18-Dec-17

04:08

wwintl.dll_1040

wwintl.dll

16.0.4465.1000

836280

18-Dec-17

04:08

wwintl.dll_1041

wwintl.dll

16.0.4465.1000

788152

18-Dec-17

04:08

wwintl.dll_1087

wwintl.dll

16.0.4471.1000

878776

18-Dec-17

04:08

wwintl.dll_1042

wwintl.dll

16.0.4471.1000

781496

18-Dec-17

04:08

wwintl.dll_1062

wwintl.dll

16.0.4471.1000

822456

18-Dec-17

04:08

wwintl.dll_1086

wwintl.dll

16.0.4471.1000

780984

18-Dec-17

04:08

wwintl.dll_1044

wwintl.dll

16.0.4465.1000

794816

18-Dec-17

04:08

wwintl.dll_1043

wwintl.dll

16.0.4561.1000

834232

18-Dec-17

04:08

wwintl.dll_1045

wwintl.dll

16.0.4471.1000

850104

18-Dec-17

04:08

wwintl.dll_1046

wwintl.dll

16.0.4471.1000

851640

18-Dec-17

04:08

wwintl.dll_2070

wwintl.dll

16.0.4471.1000

859320

18-Dec-17

04:08

wwintl.dll_1048

wwintl.dll

16.0.4465.1000

894144

18-Dec-17

04:09

wwintl.dll_1049

wwintl.dll

16.0.4465.1000

807616

18-Dec-17

04:09

wwintl.dll_1060

wwintl.dll

16.0.4465.1000

819392

18-Dec-17

04:09

wwintl.dll_2074

wwintl.dll

16.0.4465.1000

815808

18-Dec-17

04:09

wwintl.dll_9242

wwintl.dll

16.0.4465.1000

815808

18-Dec-17

04:09

wwintl.dll_1053

wwintl.dll

16.0.4471.1000

801464

18-Dec-17

04:09

wwintl.dll_1054

wwintl.dll

16.0.4471.1000

822968

18-Dec-17

04:09

wwintl.dll_1055

wwintl.dll

16.0.4465.1000

879808

18-Dec-17

04:09

wwintl.dll_1058

wwintl.dll

16.0.4471.1000

818360

18-Dec-17

04:09

wwintl.dll_1066

wwintl.dll

16.0.4465.1000

911040

18-Dec-17

04:09

wwintl.dll_2052

wwintl.dll

16.0.4471.1000

694968

18-Dec-17

04:09

wwintl.dll_1028

wwintl.dll

16.0.4471.1000

703672

18-Dec-17

04:09

pdfreflow.exe

pdfreflow.exe

16.0.4639.1000

10302656

17-Dec-17

02:34

wwintl.dll_1033

wwintl.dll

16.0.4465.1000

698560

17-Dec-17

02:32

winword.exe

winword.exe

16.0.4639.1000

1936040

17-Dec-17

02:34

wrd12cnv.dll

wordcnv.dll

16.0.4639.1000

9162920

17-Dec-17

02:34

wwlib.dll

wwlib.dll

16.0.4639.1000

29580448

17-Dec-17

02:34

File identifier

File name

File version

File size

Date

Time

calligra.dll

calligra.dll

16.0.4528.1000

338688

18-Dec-17

04:25

wdsrv.conversion.word.wwintl.dll_1025

wwintl.dll

16.0.4639.1001

942248

19-Dec-17

03:39

wwintl.dll_1025

wwintl.dll

16.0.4639.1001

942248

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1026

wwintl.dll

16.0.4639.1001

897704

19-Dec-17

03:38

wwintl.dll_1026

wwintl.dll

16.0.4639.1001

897704

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1029

wwintl.dll

16.0.4639.1001

953512

19-Dec-17

03:38

wwintl.dll_1029

wwintl.dll

16.0.4639.1001

953512

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1030

wwintl.dll

16.0.4639.1001

884384

19-Dec-17

03:38

wwintl.dll_1030

wwintl.dll

16.0.4639.1001

884384

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1031

wwintl.dll

16.0.4639.1001

964776

19-Dec-17

03:38

wwintl.dll_1031

wwintl.dll

16.0.4639.1001

964776

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1032

wwintl.dll

16.0.4639.1001

955048

19-Dec-17

03:38

wwintl.dll_1032

wwintl.dll

16.0.4639.1001

955048

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_3082

wwintl.dll

16.0.4639.1001

924320

19-Dec-17

03:38

wwintl.dll_3082

wwintl.dll

16.0.4639.1001

924320

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1061

wwintl.dll

16.0.4639.1001

848040

19-Dec-17

03:38

wwintl.dll_1061

wwintl.dll

16.0.4639.1001

848040

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1035

wwintl.dll

16.0.4639.1001

895144

19-Dec-17

03:38

wwintl.dll_1035

wwintl.dll

16.0.4639.1001

895144

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1036

wwintl.dll

16.0.4639.1001

960680

19-Dec-17

03:39

wwintl.dll_1036

wwintl.dll

16.0.4639.1001

960680

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1037

wwintl.dll

16.0.4639.1001

881320

19-Dec-17

03:39

wwintl.dll_1037

wwintl.dll

16.0.4639.1001

881320

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1081

wwintl.dll

16.0.4639.1001

942248

19-Dec-17

03:38

wwintl.dll_1081

wwintl.dll

16.0.4639.1001

942248

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1050

wwintl.dll

16.0.4639.1001

907424

19-Dec-17

03:38

wwintl.dll_1050

wwintl.dll

16.0.4639.1001

907424

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1038

wwintl.dll

16.0.4639.1001

963240

19-Dec-17

03:38

wwintl.dll_1038

wwintl.dll

16.0.4639.1001

963240

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1057

wwintl.dll

16.0.4639.1001

856232

19-Dec-17

03:38

wwintl.dll_1057

wwintl.dll

16.0.4639.1001

856232

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1040

wwintl.dll

16.0.4639.1001

915112

19-Dec-17

03:38

wwintl.dll_1040

wwintl.dll

16.0.4639.1001

915112

19-Dec-17

03:38

wac.word.wwintl.dll_1041

wwintl.dll

16.0.4639.1001

866976

wdsrv.conversion.word.wwintl.dll_1041

wwintl.dll

16.0.4639.1001

866976

19-Dec-17

03:39

wwintl.dll_1041

wwintl.dll

16.0.4639.1001

866976

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1087

wwintl.dll

16.0.4639.1001

957600

19-Dec-17

03:39

wwintl.dll_1087

wwintl.dll

16.0.4639.1001

957600

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1042

wwintl.dll

16.0.4639.1001

860328

19-Dec-17

03:39

wwintl.dll_1042

wwintl.dll

16.0.4639.1001

860328

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1063

wwintl.dll

16.0.4639.1001

914088

19-Dec-17

03:38

wwintl.dll_1063

wwintl.dll

16.0.4639.1001

914088

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1062

wwintl.dll

16.0.4639.1001

901280

19-Dec-17

03:38

wwintl.dll_1062

wwintl.dll

16.0.4639.1001

901280

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1086

wwintl.dll

16.0.4639.1001

859816

19-Dec-17

03:38

wwintl.dll_1086

wwintl.dll

16.0.4639.1001

859816

19-Dec-17

03:38

wdsrv.conversion.word.wwintl.dll_1044

wwintl.dll

16.0.4639.1001

873632

19-Dec-17

03:39

wwintl.dll_1044

wwintl.dll

16.0.4639.1001

873632

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1043

wwintl.dll

16.0.4639.1001

913056

19-Dec-17

03:39

wwintl.dll_1043

wwintl.dll

16.0.4639.1001

913056

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1045

wwintl.dll

16.0.4639.1001

929448

19-Dec-17

03:39

wwintl.dll_1045

wwintl.dll

16.0.4639.1001

929448

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1046

wwintl.dll

16.0.4639.1001

930472

19-Dec-17

03:39

wwintl.dll_1046

wwintl.dll

16.0.4639.1001

930472

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_2070

wwintl.dll

16.0.4639.1001

938152

19-Dec-17

03:39

wwintl.dll_2070

wwintl.dll

16.0.4639.1001

938152

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1048

wwintl.dll

16.0.4639.1001

973480

19-Dec-17

03:39

wwintl.dll_1048

wwintl.dll

16.0.4639.1001

973480

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1049

wwintl.dll

16.0.4639.1001

886440

19-Dec-17

03:39

wwintl.dll_1049

wwintl.dll

16.0.4639.1001

886440

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1051

wwintl.dll

16.0.4639.1001

968360

19-Dec-17

03:39

wwintl.dll_1051

wwintl.dll

16.0.4639.1001

968360

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1060

wwintl.dll

16.0.4639.1001

898208

19-Dec-17

03:39

wwintl.dll_1060

wwintl.dll

16.0.4639.1001

898208

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_2074

wwintl.dll

16.0.4639.1001

894632

19-Dec-17

03:39

wwintl.dll_2074

wwintl.dll

16.0.4639.1001

894632

19-Dec-17

03:39

wac.word.wwintl.dll_9242

wwintl.dll

16.0.4639.1001

894624

wdsrv.conversion.word.wwintl.dll_9242

wwintl.dll

16.0.4639.1001

894624

19-Dec-17

03:39

wwintl.dll_9242

wwintl.dll

16.0.4639.1001

894624

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1053

wwintl.dll

16.0.4639.1001

880288

19-Dec-17

03:39

wwintl.dll_1053

wwintl.dll

16.0.4639.1001

880288

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1054

wwintl.dll

16.0.4639.1001

902312

19-Dec-17

03:39

wwintl.dll_1054

wwintl.dll

16.0.4639.1001

902312

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1055

wwintl.dll

16.0.4639.1001

958632

19-Dec-17

03:39

wwintl.dll_1055

wwintl.dll

16.0.4639.1001

958632

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1058

wwintl.dll

16.0.4639.1001

897192

19-Dec-17

03:39

wwintl.dll_1058

wwintl.dll

16.0.4639.1001

897192

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1066

wwintl.dll

16.0.4639.1001

989864

19-Dec-17

03:39

wwintl.dll_1066

wwintl.dll

16.0.4639.1001

989864

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_2052

wwintl.dll

16.0.4639.1001

774312

19-Dec-17

03:39

wwintl.dll_2052

wwintl.dll

16.0.4639.1001

774312

19-Dec-17

03:39

wdsrv.conversion.word.wwintl.dll_1028

wwintl.dll

16.0.4639.1001

783016

19-Dec-17

03:39

wwintl.dll_1028

wwintl.dll

16.0.4639.1001

783016

19-Dec-17

03:39

pdfreflow.exe

pdfreflow.exe

16.0.4639.1000

15916224

17-Dec-17

02:38

wac.word.wwintl.dll_1033

wwintl.dll

16.0.4465.1000

777920

wdsrv.conversion.word.wwintl.dll_1033

wwintl.dll

16.0.4465.1000

777920

wwintl.dll_1033

wwintl.dll

16.0.4465.1000

777920

17-Dec-17

02:34

winword.exe

winword.exe

16.0.4639.1000

1939104

17-Dec-17

02:38

wrd12cnv.dll

wordcnv.dll

16.0.4639.1000

11864232

17-Dec-17

02:38

wwlib.dll

wwlib.dll

16.0.4639.1000

37185696

17-Dec-17

02:38

How to get help and support for this security update

Help for installing updates: Windows Update FAQ

Security solutions for IT professionals: Security Support and Troubleshooting

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

Local support according to your country: International Support

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

Need more help?

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