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-2018-0919.

Note To apply this security update, you must have the release version of 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 2013. It doesn't apply to the Office 2013 Click-to-Run editions, such as Microsoft Office 365 Home. (Determining your Office version)

Known issues in this security update

  • Symptoms
    After you install this security update, you may be unable to open or save a Word document.

    Workaround
    To work around this issue, install the March 6, 2018 update for Office 2016 (KB4018295)

    Microsoft is researching this problem and will post more information in this article when the information becomes available.

Improvements and fixes

This security update contains a fix for the following nonsecurity issue:

  • When you send an email message that contains merged data resources that include upper ANSI characters as a plain text message, the upper ANSI characters are replaced by Unicode characters unexpectedly.

This security update also contains the following improvements:

  • Enables the Document Information Panel feature in Office 2016. After you install this update, you can update the SharePoint and document properties of an Office document by selecting the View tab, and clicking the Properties button to open the Properties panel.

  • Translates terms for the Document Information Panel in Office 2016.

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: March 13, 2018.

Security update replacement information

This security update replaces previously released security update 4011643.

File hash information

Package name

Package hash SHA 1

Package hash SHA 2

word2016-kb4011730-fullfile-x64-glb.exe

B65C9E0E2550BD8A78778AA49798B2D809AEB14A

AB919547B8BA69E2B79BB7080A2C45286BAB7F9EC37F2FA791DF39C3AE657FD6

word2016-kb4011730-fullfile-x86-glb.exe

9F66813B8D677B8B6970343F87FC7C99CCEDD32F

C0E0F0B90DEF8EC3221073DB5A71813B4564866329295E4828C39031900979DA

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 the times for these files are listed in Coordinated Universal Time (UTC). The dates and the 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 the 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

16.0.4666.1000

821416

14-Feb-18

11:35

wwintl.dll_1026

wwintl.dll

16.0.4666.1000

818856

14-Feb-18

11:35

wwintl.dll_1029

wwintl.dll

16.0.4666.1000

874656

14-Feb-18

11:35

wwintl.dll_1030

wwintl.dll

16.0.4666.1000

806056

14-Feb-18

11:35

wwintl.dll_1031

wwintl.dll

16.0.4666.1000

885928

14-Feb-18

11:35

wwintl.dll_1032

wwintl.dll

16.0.4666.1000

876200

14-Feb-18

11:35

wwintl.dll_3082

wwintl.dll

16.0.4666.1000

845472

14-Feb-18

11:35

wwintl.dll_1061

wwintl.dll

16.0.4666.1000

769192

14-Feb-18

11:35

wwintl.dll_1035

wwintl.dll

16.0.4666.1000

816296

14-Feb-18

11:35

wwintl.dll_1036

wwintl.dll

16.0.4666.1000

881824

14-Feb-18

11:35

wwintl.dll_1037

wwintl.dll

16.0.4666.1000

759976

14-Feb-18

11:35

wwintl.dll_1081

wwintl.dll

16.0.4666.1000

863400

14-Feb-18

11:35

wwintl.dll_1050

wwintl.dll

16.0.4666.1000

828584

14-Feb-18

11:35

wwintl.dll_1038

wwintl.dll

16.0.4666.1000

884392

14-Feb-18

11:35

wwintl.dll_1057

wwintl.dll

16.0.4666.1000

777384

14-Feb-18

11:35

wwintl.dll_1040

wwintl.dll

16.0.4666.1000

836768

14-Feb-18

11:35

wwintl.dll_1041

wwintl.dll

16.0.4666.1000

788128

14-Feb-18

11:35

wwintl.dll_1087

wwintl.dll

16.0.4666.1000

878760

14-Feb-18

11:35

wwintl.dll_1042

wwintl.dll

16.0.4666.1000

781480

14-Feb-18

11:35

wwintl.dll_1063

wwintl.dll

16.0.4666.1000

835240

14-Feb-18

11:35

wwintl.dll_1062

wwintl.dll

16.0.4666.1000

822440

14-Feb-18

11:35

wwintl.dll_1086

wwintl.dll

16.0.4666.1000

780968

14-Feb-18

11:35

wwintl.dll_1044

wwintl.dll

16.0.4666.1000

794792

14-Feb-18

11:35

wwintl.dll_1043

wwintl.dll

16.0.4666.1000

834216

14-Feb-18

11:35

wwintl.dll_1045

wwintl.dll

16.0.4666.1000

850600

14-Feb-18

11:35

wwintl.dll_1046

wwintl.dll

16.0.4666.1000

851624

14-Feb-18

11:35

wwintl.dll_2070

wwintl.dll

16.0.4666.1000

859304

14-Feb-18

11:35

wwintl.dll_1048

wwintl.dll

16.0.4666.1000

894632

14-Feb-18

11:35

wwintl.dll_1049

wwintl.dll

16.0.4666.1000

807592

14-Feb-18

11:35

wwintl.dll_1051

wwintl.dll

16.0.4666.1000

889504

14-Feb-18

11:35

wwintl.dll_1060

wwintl.dll

16.0.4666.1000

819360

14-Feb-18

11:35

wwintl.dll_2074

wwintl.dll

16.0.4660.1000

815784

14-Feb-18

10:53

wwintl.dll_9242

wwintl.dll

16.0.4666.1000

815784

14-Feb-18

11:35

wwintl.dll_1053

wwintl.dll

16.0.4666.1000

801440

14-Feb-18

11:35

wwintl.dll_1054

wwintl.dll

16.0.4666.1000

823456

14-Feb-18

11:35

wwintl.dll_1055

wwintl.dll

16.0.4666.1000

879784

14-Feb-18

11:35

wwintl.dll_1058

wwintl.dll

16.0.4666.1000

818336

14-Feb-18

11:35

wwintl.dll_1066

wwintl.dll

16.0.4666.1000

911008

14-Feb-18

11:35

wwintl.dll_2052

wwintl.dll

16.0.4666.1000

694952

14-Feb-18

11:35

wwintl.dll_1028

wwintl.dll

16.0.4666.1000

704168

14-Feb-18

11:36

pdfreflow.exe

pdfreflow.exe

16.0.4660.1000

10302656

13-Feb-18

06:56

wwintl.dll_1033

wwintl.dll

16.0.4666.1000

698536

14-Feb-18

11:35

winword.exe

winword.exe

16.0.4666.1000

1936040

14-Feb-18

11:32

wrd12cnv.dll

wordcnv.dll

16.0.4666.1000

9163432

14-Feb-18

11:32

wwlib.dll

wwlib.dll

16.0.4666.1000

29541544

14-Feb-18

11:32

File identifier

File name

File version

File size

Date

Time

calligra.dll

calligra.dll

16.0.4528.1000

338688

14-Feb-18

11:14

wdsrv.conversion.word.wwintl.dll_1025

wwintl.dll

16.0.4666.1000

942760

14-Feb-18

11:34

wwintl.dll_1025

wwintl.dll

16.0.4666.1000

942760

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1026

wwintl.dll

16.0.4666.1000

897704

14-Feb-18

11:33

wwintl.dll_1026

wwintl.dll

16.0.4666.1000

897704

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1029

wwintl.dll

16.0.4666.1000

953512

14-Feb-18

11:33

wwintl.dll_1029

wwintl.dll

16.0.4666.1000

953512

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1030

wwintl.dll

16.0.4666.1000

884904

14-Feb-18

11:33

wwintl.dll_1030

wwintl.dll

16.0.4666.1000

884904

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1031

wwintl.dll

16.0.4666.1000

965280

14-Feb-18

11:33

wwintl.dll_1031

wwintl.dll

16.0.4666.1000

965280

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1032

wwintl.dll

16.0.4666.1000

955048

14-Feb-18

11:33

wwintl.dll_1032

wwintl.dll

16.0.4666.1000

955048

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_3082

wwintl.dll

16.0.4666.1000

924832

14-Feb-18

11:33

wwintl.dll_3082

wwintl.dll

16.0.4666.1000

924832

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1061

wwintl.dll

16.0.4666.1000

848040

14-Feb-18

11:33

wwintl.dll_1061

wwintl.dll

16.0.4666.1000

848040

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1035

wwintl.dll

16.0.4666.1000

895144

14-Feb-18

11:33

wwintl.dll_1035

wwintl.dll

16.0.4666.1000

895144

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1036

wwintl.dll

16.0.4666.1000

960680

14-Feb-18

11:33

wwintl.dll_1036

wwintl.dll

16.0.4666.1000

960680

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1037

wwintl.dll

16.0.4666.1000

881320

14-Feb-18

11:34

wwintl.dll_1037

wwintl.dll

16.0.4666.1000

881320

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1081

wwintl.dll

16.0.4666.1000

942240

14-Feb-18

11:33

wwintl.dll_1081

wwintl.dll

16.0.4666.1000

942240

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1050

wwintl.dll

16.0.4666.1000

907432

14-Feb-18

11:33

wwintl.dll_1050

wwintl.dll

16.0.4666.1000

907432

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1038

wwintl.dll

16.0.4666.1000

963240

14-Feb-18

11:33

wwintl.dll_1038

wwintl.dll

16.0.4666.1000

963240

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1057

wwintl.dll

16.0.4666.1000

856232

14-Feb-18

11:33

wwintl.dll_1057

wwintl.dll

16.0.4666.1000

856232

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1040

wwintl.dll

16.0.4666.1000

915624

14-Feb-18

11:33

wwintl.dll_1040

wwintl.dll

16.0.4666.1000

915624

14-Feb-18

11:33

wac.word.wwintl.dll_1041

wwintl.dll

16.0.4666.1000

866984

wdsrv.conversion.word.wwintl.dll_1041

wwintl.dll

16.0.4666.1000

866984

14-Feb-18

11:34

wwintl.dll_1041

wwintl.dll

16.0.4666.1000

866984

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1087

wwintl.dll

16.0.4666.1000

957608

14-Feb-18

11:34

wwintl.dll_1087

wwintl.dll

16.0.4666.1000

957608

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1042

wwintl.dll

16.0.4666.1000

860328

14-Feb-18

11:34

wwintl.dll_1042

wwintl.dll

16.0.4666.1000

860328

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1063

wwintl.dll

16.0.4666.1000

914088

14-Feb-18

11:33

wwintl.dll_1063

wwintl.dll

16.0.4666.1000

914088

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1062

wwintl.dll

16.0.4666.1000

901288

14-Feb-18

11:33

wwintl.dll_1062

wwintl.dll

16.0.4666.1000

901288

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1086

wwintl.dll

16.0.4666.1000

859816

14-Feb-18

11:33

wwintl.dll_1086

wwintl.dll

16.0.4666.1000

859816

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1044

wwintl.dll

16.0.4666.1000

873640

14-Feb-18

11:33

wwintl.dll_1044

wwintl.dll

16.0.4666.1000

873640

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1043

wwintl.dll

16.0.4666.1000

913064

14-Feb-18

11:33

wwintl.dll_1043

wwintl.dll

16.0.4666.1000

913064

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1045

wwintl.dll

16.0.4666.1000

929448

14-Feb-18

11:33

wwintl.dll_1045

wwintl.dll

16.0.4666.1000

929448

14-Feb-18

11:33

wdsrv.conversion.word.wwintl.dll_1046

wwintl.dll

16.0.4666.1000

930472

14-Feb-18

11:34

wwintl.dll_1046

wwintl.dll

16.0.4666.1000

930472

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_2070

wwintl.dll

16.0.4666.1000

938144

14-Feb-18

11:34

wwintl.dll_2070

wwintl.dll

16.0.4666.1000

938144

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1048

wwintl.dll

16.0.4666.1000

973480

14-Feb-18

11:34

wwintl.dll_1048

wwintl.dll

16.0.4666.1000

973480

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1049

wwintl.dll

16.0.4666.1000

886440

14-Feb-18

11:34

wwintl.dll_1049

wwintl.dll

16.0.4666.1000

886440

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1051

wwintl.dll

16.0.4666.1000

968360

14-Feb-18

11:34

wwintl.dll_1051

wwintl.dll

16.0.4666.1000

968360

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1060

wwintl.dll

16.0.4666.1000

898216

14-Feb-18

11:34

wwintl.dll_1060

wwintl.dll

16.0.4666.1000

898216

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_2074

wwintl.dll

16.0.4666.1000

894632

14-Feb-18

11:34

wwintl.dll_2074

wwintl.dll

16.0.4666.1000

894632

14-Feb-18

11:34

wac.word.wwintl.dll_9242

wwintl.dll

16.0.4666.1000

895144

wdsrv.conversion.word.wwintl.dll_9242

wwintl.dll

16.0.4666.1000

895144

14-Feb-18

11:34

wwintl.dll_9242

wwintl.dll

16.0.4666.1000

895144

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1053

wwintl.dll

16.0.4666.1000

880296

14-Feb-18

11:34

wwintl.dll_1053

wwintl.dll

16.0.4666.1000

880296

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1054

wwintl.dll

16.0.4666.1000

902304

14-Feb-18

11:34

wwintl.dll_1054

wwintl.dll

16.0.4666.1000

902304

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1055

wwintl.dll

16.0.4666.1000

959136

14-Feb-18

11:34

wwintl.dll_1055

wwintl.dll

16.0.4666.1000

959136

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1058

wwintl.dll

16.0.4666.1000

897184

14-Feb-18

11:34

wwintl.dll_1058

wwintl.dll

16.0.4666.1000

897184

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1066

wwintl.dll

16.0.4666.1000

989864

14-Feb-18

11:34

wwintl.dll_1066

wwintl.dll

16.0.4666.1000

989864

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_2052

wwintl.dll

16.0.4666.1000

774312

14-Feb-18

11:34

wwintl.dll_2052

wwintl.dll

16.0.4666.1000

774312

14-Feb-18

11:34

wdsrv.conversion.word.wwintl.dll_1028

wwintl.dll

16.0.4666.1000

783016

14-Feb-18

11:34

wwintl.dll_1028

wwintl.dll

16.0.4666.1000

783016

14-Feb-18

11:34

pdfreflow.exe

pdfreflow.exe

16.0.4660.1000

15916224

13-Feb-18

07:01

wac.word.wwintl.dll_1033

wwintl.dll

16.0.4666.1000

778408

wdsrv.conversion.word.wwintl.dll_1033

wwintl.dll

16.0.4666.1000

778408

14-Feb-18

11:33

wwintl.dll_1033

wwintl.dll

16.0.4666.1000

778408

14-Feb-18

11:33

winword.exe

winword.exe

16.0.4666.1000

1939112

14-Feb-18

11:36

wrd12cnv.dll

wordcnv.dll

16.0.4666.1000

11864744

14-Feb-18

11:36

wwlib.dll

wwlib.dll

16.0.4666.1000

37143208

14-Feb-18

11:36

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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