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Summary

This security update resolves a Microsoft Word remote code execution vulnerability. To learn more about the vulnerability, see ​​​​​​​Microsoft Common Vulnerabilities and Exposures CVE-2023-21716.

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 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 Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 5002223.

File hash information

File name

SHA256 hash

word2016-kb5002323-fullfile-x86-glb.exe

5E86AD1A035F1BD85455305CA3B649F81E031C0522F6446950BC947C6CCEABE3

word2016-kb5002323-fullfile-x64-glb.exe

D111D630389744D1523B971D538548A68CB80B0451651DF136B7051A4DA197D2

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

genko.dll

genko.dll

16.0.5032.1000

402264

17-Jan-23

09:35

wwintl.dll_1025

wwintl.dll

16.0.4936.1000

823584

18-Jan-23

09:25

wwintl.dll_1026

wwintl.dll

16.0.4936.1000

820504

18-Jan-23

09:25

wwintl.dll_1029

wwintl.dll

16.0.4936.1000

876320

18-Jan-23

09:25

wwintl.dll_1030

wwintl.dll

16.0.4936.1000

807712

18-Jan-23

09:25

wwintl.dll_1031

wwintl.dll

16.0.4936.1000

888088

18-Jan-23

09:25

wwintl.dll_1032

wwintl.dll

16.0.4936.1000

877856

18-Jan-23

09:25

wwintl.dll_3082

wwintl.dll

16.0.5362.1000

849784

18-Jan-23

09:25

wwintl.dll_1061

wwintl.dll

16.0.4936.1000

770840

18-Jan-23

09:25

wwintl.dll_1035

wwintl.dll

16.0.4936.1000

818464

18-Jan-23

09:25

wwintl.dll_1036

wwintl.dll

16.0.5377.1000

886136

18-Jan-23

09:25

wwintl.dll_1037

wwintl.dll

16.0.4936.1000

762144

18-Jan-23

09:25

wwintl.dll_1081

wwintl.dll

16.0.4936.1000

865056

18-Jan-23

09:25

wwintl.dll_1050

wwintl.dll

16.0.4936.1000

830744

18-Jan-23

09:25

wwintl.dll_1038

wwintl.dll

16.0.4936.1000

886560

18-Jan-23

09:25

wwintl.dll_1057

wwintl.dll

16.0.4936.1000

779040

18-Jan-23

09:25

wwintl.dll_1040

wwintl.dll

16.0.4936.1000

838424

18-Jan-23

09:25

wwintl.dll_1041

wwintl.dll

16.0.4936.1000

790304

18-Jan-23

09:25

wwintl.dll_1087

wwintl.dll

16.0.4936.1000

880408

18-Jan-23

09:25

wwintl.dll_1042

wwintl.dll

16.0.4936.1000

783136

18-Jan-23

09:25

wwintl.dll_1063

wwintl.dll

16.0.4936.1000

836896

18-Jan-23

09:25

wwintl.dll_1062

wwintl.dll

16.0.4936.1000

824608

18-Jan-23

09:25

wwintl.dll_1086

wwintl.dll

16.0.4936.1000

782616

18-Jan-23

09:25

wwintl.dll_1044

wwintl.dll

16.0.4936.1000

797168

18-Jan-23

09:25

wwintl.dll_1043

wwintl.dll

16.0.4936.1000

835872

18-Jan-23

09:25

wwintl.dll_1045

wwintl.dll

16.0.4936.1000

852256

18-Jan-23

09:25

wwintl.dll_1046

wwintl.dll

16.0.4936.1000

853280

18-Jan-23

09:25

wwintl.dll_2070

wwintl.dll

16.0.4936.1000

861464

18-Jan-23

09:25

wwintl.dll_1048

wwintl.dll

16.0.4936.1000

896280

18-Jan-23

09:25

wwintl.dll_1049

wwintl.dll

16.0.4936.1000

809968

18-Jan-23

09:26

wwintl.dll_1051

wwintl.dll

16.0.4936.1000

891160

18-Jan-23

09:26

wwintl.dll_1060

wwintl.dll

16.0.4936.1000

821768

18-Jan-23

09:26

wwintl.dll_2074

wwintl.dll

16.0.4936.1000

817944

18-Jan-23

09:26

wwintl.dll_9242

wwintl.dll

16.0.4936.1000

817952

18-Jan-23

09:26

wwintl.dll_1053

wwintl.dll

16.0.4936.1000

803616

18-Jan-23

09:26

wwintl.dll_1054

wwintl.dll

16.0.4936.1000

825112

18-Jan-23

09:26

wwintl.dll_1055

wwintl.dll

16.0.4936.1000

881952

18-Jan-23

09:26

wwintl.dll_1058

wwintl.dll

16.0.4936.1000

820000

18-Jan-23

09:26

wwintl.dll_1066

wwintl.dll

16.0.4936.1000

912672

18-Jan-23

09:26

wwintl.dll_2052

wwintl.dll

16.0.4936.1000

697120

18-Jan-23

09:26

wwintl.dll_1028

wwintl.dll

16.0.4936.1000

706240

18-Jan-23

09:26

jrpcard20.dll_1041

jrpcard20.dll

16.0.4834.1000

330960

17-Jan-23

09:35

pdfreflow.exe

pdfreflow.exe

16.0.5377.1000

10308536

17-Jan-23

09:33

wwintl.dll_1033

wwintl.dll

16.0.4936.1000

701152

17-Jan-23

09:32

msword.olb

msword.olb

939304

17-Jan-23

09:33

winword.exe

winword.exe

16.0.5383.1000

1939872

19-Jan-23

05:57

wrd12cnv.dll

wordcnv.dll

16.0.5383.1000

9186216

19-Jan-23

05:57

wwlib.dll

wwlib.dll

16.0.5383.1000

29630376

19-Jan-23

05:57

File identifier

File name

File version

File size

Date

Time

calligra.dll

calligra.dll

16.0.4528.1000

338688

18-Jan-23

09:42

genko.dll

genko.dll

16.0.5032.1000

513368

17-Jan-23

09:38

wdsrv.conversion.word.wwintl.dll_1025

wwintl.dll

16.0.5383.1000

946592

19-Jan-23

05:59

wwintl.dll_1025

wwintl.dll

16.0.5383.1000

946592

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1026

wwintl.dll

16.0.5383.1000

901544

19-Jan-23

05:59

wwintl.dll_1026

wwintl.dll

16.0.5383.1000

901544

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1029

wwintl.dll

16.0.5383.1000

957864

19-Jan-23

05:59

wwintl.dll_1029

wwintl.dll

16.0.5383.1000

957864

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1030

wwintl.dll

16.0.5383.1000

888736

19-Jan-23

05:59

wwintl.dll_1030

wwintl.dll

16.0.5383.1000

888736

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1031

wwintl.dll

16.0.5383.1000

969080

19-Jan-23

05:59

wwintl.dll_1031

wwintl.dll

16.0.5383.1000

969080

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1032

wwintl.dll

16.0.5383.1000

958888

19-Jan-23

05:59

wwintl.dll_1032

wwintl.dll

16.0.5383.1000

958888

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_3082

wwintl.dll

16.0.5383.1000

928632

19-Jan-23

05:59

wwintl.dll_3082

wwintl.dll

16.0.5383.1000

928632

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1061

wwintl.dll

16.0.5383.1000

851792

19-Jan-23

05:59

wwintl.dll_1061

wwintl.dll

16.0.5383.1000

851792

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1035

wwintl.dll

16.0.5383.1000

899456

19-Jan-23

05:59

wwintl.dll_1035

wwintl.dll

16.0.5383.1000

899456

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1036

wwintl.dll

16.0.5383.1000

964984

19-Jan-23

05:59

wwintl.dll_1036

wwintl.dll

16.0.5383.1000

964984

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1037

wwintl.dll

16.0.5383.1000

885072

19-Jan-23

05:59

wwintl.dll_1037

wwintl.dll

16.0.5383.1000

885072

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1081

wwintl.dll

16.0.5383.1000

946512

19-Jan-23

05:59

wwintl.dll_1081

wwintl.dll

16.0.5383.1000

946512

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1050

wwintl.dll

16.0.5383.1000

911688

19-Jan-23

05:59

wwintl.dll_1050

wwintl.dll

16.0.5383.1000

911688

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1038

wwintl.dll

16.0.5383.1000

967512

19-Jan-23

05:59

wwintl.dll_1038

wwintl.dll

16.0.5383.1000

967512

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1057

wwintl.dll

16.0.5383.1000

859984

19-Jan-23

05:59

wwintl.dll_1057

wwintl.dll

16.0.5383.1000

859984

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1040

wwintl.dll

16.0.5383.1000

919368

19-Jan-23

05:59

wwintl.dll_1040

wwintl.dll

16.0.5383.1000

919368

19-Jan-23

05:59

wac.word.wwintl.dll_1041

wwintl.dll

16.0.5383.1000

871248

wdsrv.conversion.word.wwintl.dll_1041

wwintl.dll

16.0.5383.1000

871248

19-Jan-23

05:59

wwintl.dll_1041

wwintl.dll

16.0.5383.1000

871248

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1087

wwintl.dll

16.0.5383.1000

961864

19-Jan-23

05:59

wwintl.dll_1087

wwintl.dll

16.0.5383.1000

961864

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1042

wwintl.dll

16.0.5383.1000

864600

19-Jan-23

05:59

wwintl.dll_1042

wwintl.dll

16.0.5383.1000

864600

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1063

wwintl.dll

16.0.5383.1000

918344

19-Jan-23

05:59

wwintl.dll_1063

wwintl.dll

16.0.5383.1000

918344

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1062

wwintl.dll

16.0.5383.1000

905544

19-Jan-23

05:59

wwintl.dll_1062

wwintl.dll

16.0.5383.1000

905544

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1086

wwintl.dll

16.0.5383.1000

864088

19-Jan-23

05:59

wwintl.dll_1086

wwintl.dll

16.0.5383.1000

864088

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1044

wwintl.dll

16.0.5383.1000

877904

19-Jan-23

05:59

wwintl.dll_1044

wwintl.dll

16.0.5383.1000

877904

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1043

wwintl.dll

16.0.5383.1000

917320

19-Jan-23

05:59

wwintl.dll_1043

wwintl.dll

16.0.5383.1000

917320

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1045

wwintl.dll

16.0.5383.1000

933720

19-Jan-23

05:59

wwintl.dll_1045

wwintl.dll

16.0.5383.1000

933720

19-Jan-23

05:59

wdsrv.conversion.word.wwintl.dll_1046

wwintl.dll

16.0.5383.1000

934736

19-Jan-23

06:00

wwintl.dll_1046

wwintl.dll

16.0.5383.1000

934736

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_2070

wwintl.dll

16.0.5383.1000

942416

19-Jan-23

06:00

wwintl.dll_2070

wwintl.dll

16.0.5383.1000

942416

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1048

wwintl.dll

16.0.5383.1000

977784

19-Jan-23

06:00

wwintl.dll_1048

wwintl.dll

16.0.5383.1000

977784

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1049

wwintl.dll

16.0.5383.1000

890696

19-Jan-23

06:00

wwintl.dll_1049

wwintl.dll

16.0.5383.1000

890696

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1051

wwintl.dll

16.0.5383.1000

972624

19-Jan-23

06:00

wwintl.dll_1051

wwintl.dll

16.0.5383.1000

972624

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1060

wwintl.dll

16.0.5383.1000

902472

19-Jan-23

06:00

wwintl.dll_1060

wwintl.dll

16.0.5383.1000

902472

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_2074

wwintl.dll

16.0.5383.1000

898896

19-Jan-23

06:00

wwintl.dll_2074

wwintl.dll

16.0.5383.1000

898896

19-Jan-23

06:00

wac.word.wwintl.dll_9242

wwintl.dll

16.0.5383.1000

898896

wdsrv.conversion.word.wwintl.dll_9242

wwintl.dll

16.0.5383.1000

898896

19-Jan-23

06:00

wwintl.dll_9242

wwintl.dll

16.0.5383.1000

898896

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1053

wwintl.dll

16.0.5383.1000

884568

19-Jan-23

06:00

wwintl.dll_1053

wwintl.dll

16.0.5383.1000

884568

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1054

wwintl.dll

16.0.5383.1000

906056

19-Jan-23

06:00

wwintl.dll_1054

wwintl.dll

16.0.5383.1000

906056

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1055

wwintl.dll

16.0.5383.1000

962896

19-Jan-23

06:00

wwintl.dll_1055

wwintl.dll

16.0.5383.1000

962896

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1058

wwintl.dll

16.0.5383.1000

900944

19-Jan-23

06:00

wwintl.dll_1058

wwintl.dll

16.0.5383.1000

900944

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1066

wwintl.dll

16.0.5383.1000

994128

19-Jan-23

06:00

wwintl.dll_1066

wwintl.dll

16.0.5383.1000

994128

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_2052

wwintl.dll

16.0.5383.1000

778144

19-Jan-23

06:00

wwintl.dll_2052

wwintl.dll

16.0.5383.1000

778144

19-Jan-23

06:00

wdsrv.conversion.word.wwintl.dll_1028

wwintl.dll

16.0.5383.1000

786776

19-Jan-23

06:00

wwintl.dll_1028

wwintl.dll

16.0.5383.1000

786776

19-Jan-23

06:00

jrpcard20.dll_1041

jrpcard20.dll

16.0.4834.1000

331168

17-Jan-23

09:38

pdfreflow.exe

pdfreflow.exe

16.0.5377.1000

15922632

17-Jan-23

09:35

wac.word.wwintl.dll_1033

wwintl.dll

16.0.4936.1000

780488

wdsrv.conversion.word.wwintl.dll_1033

wwintl.dll

16.0.4936.1000

780488

17-Jan-23

09:31

wwintl.dll_1033

wwintl.dll

16.0.4936.1000

780488

17-Jan-23

09:31

msword.olb

msword.olb

939304

17-Jan-23

09:35

winword.exe

winword.exe

16.0.5383.1000

1942864

19-Jan-23

05:57

wrd12cnv.dll

wordcnv.dll

16.0.5383.1000

11894088

19-Jan-23

05:57

wwlib.dll

wwlib.dll

16.0.5383.1000

37254512

19-Jan-23

05:57

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