Summary

This security update resolves an information disclosure vulnerability that exists if Microsoft Office Javascript does not check the validity of the webpage that is making a request to Office documents. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1109.

Note To apply this security update, you must have the release version of Office 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: July 9, 2019.

Security update replacement information

This security update doesn't replace any previously released update.

File hash information

File name

SHA1 hash

SHA256 hash

osfclient2016-kb4464534-fullfile-x86-glb.exe

0FAC739C5D8F8C5FA7C3C2CF3AF6AB42AD163D90

8C81A0C6A0620BAF421F8F5D06F475669CCE35F97C785773AF960E8CAACA8631

osfclient2016-kb4464534-fullfile-x64-glb.exe

B98C162FF01C9BF060D84D4523271738C091152D

BD9740C1381700F085BAFBBBBAECDDCD7A16A45DA68BA5044E4B7F1955B62E74


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

osfintl.dll_1025

osfintl.dll

16.0.4873.1000

267944

12-Jun-19

09:25

osfintl.dll_1026

osfintl.dll

16.0.4873.1000

269784

12-Jun-19

08:55

osfintl.dll_1029

osfintl.dll

16.0.4873.1000

266696

12-Jun-19

09:25

osfintl.dll_1030

osfintl.dll

16.0.4873.1000

264744

12-Jun-19

09:25

osfintl.dll_1031

osfintl.dll

16.0.4873.1000

266760

12-Jun-19

09:25

osfintl.dll_1032

osfintl.dll

16.0.4873.1000

273816

12-Jun-19

09:25

osfintl.dll_3082

osfintl.dll

16.0.4873.1000

264176

12-Jun-19

09:25

osfintl.dll_1061

osfintl.dll

16.0.4873.1000

262704

12-Jun-19

08:55

osfintl.dll_1035

osfintl.dll

16.0.4873.1000

262584

12-Jun-19

09:25

osfintl.dll_1036

osfintl.dll

16.0.4873.1000

267520

12-Jun-19

09:25

osfintl.dll_1037

osfintl.dll

16.0.4873.1000

263040

12-Jun-19

09:25

osfintl.dll_1081

osfintl.dll

16.0.4873.1000

276648

12-Jun-19

09:25

osfintl.dll_1050

osfintl.dll

16.0.4873.1000

263696

12-Jun-19

09:25

osfintl.dll_1038

osfintl.dll

16.0.4873.1000

268264

12-Jun-19

08:55

osfintl.dll_1057

osfintl.dll

16.0.4873.1000

261672

12-Jun-19

08:55

osfintl.dll_1040

osfintl.dll

16.0.4873.1000

265496

12-Jun-19

09:25

osfintl.dll_1041

osfintl.dll

16.0.4873.1000

267136

12-Jun-19

09:25

osfintl.dll_1087

osfintl.dll

16.0.4873.1000

272040

12-Jun-19

09:25

osfintl.dll_1042

osfintl.dll

16.0.4873.1000

265600

12-Jun-19

09:25

osfintl.dll_1063

osfintl.dll

16.0.4873.1000

265488

12-Jun-19

09:25

osfintl.dll_1062

osfintl.dll

16.0.4873.1000

266720

12-Jun-19

09:25

osfintl.dll_1086

osfintl.dll

16.0.4873.1000

263120

12-Jun-19

08:55

osfintl.dll_1044

osfintl.dll

16.0.4873.1000

262096

12-Jun-19

09:25

osfintl.dll_1043

osfintl.dll

16.0.4873.1000

265168

12-Jun-19

09:25

osfintl.dll_1045

osfintl.dll

16.0.4873.1000

266248

12-Jun-19

09:25

osfintl.dll_1046

osfintl.dll

16.0.4873.1000

264176

12-Jun-19

09:25

osfintl.dll_2070

osfintl.dll

16.0.4873.1000

264176

12-Jun-19

09:25

osfintl.dll_1048

osfintl.dll

16.0.4873.1000

269792

12-Jun-19

09:25

osfintl.dll_1049

osfintl.dll

16.0.4873.1000

271016

12-Jun-19

09:25

osfintl.dll_1051

osfintl.dll

16.0.4873.1000

267240

12-Jun-19

08:55

osfintl.dll_1060

osfintl.dll

16.0.4873.1000

264208

12-Jun-19

08:55

osfintl.dll_2074

osfintl.dll

16.0.4873.1000

263696

12-Jun-19

09:25

osfintl.dll_9242

osfintl.dll

16.0.4873.1000

265744

12-Jun-19

09:25

osfintl.dll_1053

osfintl.dll

16.0.4873.1000

262696

12-Jun-19

09:25

osfintl.dll_1054

osfintl.dll

16.0.4873.1000

272256

12-Jun-19

09:25

osfintl.dll_1055

osfintl.dll

16.0.4873.1000

266192

12-Jun-19

09:25

osfintl.dll_1058

osfintl.dll

16.0.4873.1000

270808

12-Jun-19

09:25

osfintl.dll_1066

osfintl.dll

16.0.4873.1000

267648

12-Jun-19

08:55

osfintl.dll_2052

osfintl.dll

16.0.4873.1000

260992

12-Jun-19

09:25

osfintl.dll_1028

osfintl.dll

16.0.4873.1000

260776

12-Jun-19

09:25

osfintl.dll_1033

osfintl.dll

16.0.4873.1000

261080

12-Jun-19

09:25

minsbproxy.dll

minsbproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

minsbproxy.dll.x86

minsbproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

minsbroamingproxy.dll

minsbroamingproxy.dll

16.0.4873.1000

51696

12-Jun-19

08:50

minsbroamingproxy.dll.x86

minsbroamingproxy.dll

16.0.4873.1000

51696

12-Jun-19

08:55

msosb.dll

msosb.dll

16.0.4873.1000

161328

12-Jun-19

08:50

msosb.dll.x86

msosb.dll

16.0.4873.1000

161328

12-Jun-19

08:55

osf.dll

osf.dll

16.0.4873.1000

1182680

12-Jun-19

08:50

osfproxy.dll

osfproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

osfproxy.dll.x86

osfproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

osfroamingproxy.dll

osfroamingproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

osfroamingproxy.dll.x86

osfroamingproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

osfshared.dll

osfshared.dll

16.0.4864.1000

153056

11-Jun-19

03:39

osfui.dll

osfui.dll

16.0.4861.1000

350256

11-Jun-19

03:39

websb.dll

websandbox.dll

16.0.4873.1000

630744

12-Jun-19

08:50

File identifier

File name

File version

File size

Date

Time

osfintl.dll_1025

osfintl.dll

16.0.4873.1000

267736

12-Jun-19

09:31

osfintl.dll_1026

osfintl.dll

16.0.4873.1000

269784

12-Jun-19

08:55

osfintl.dll_1029

osfintl.dll

16.0.4873.1000

266272

12-Jun-19

09:31

osfintl.dll_1030

osfintl.dll

16.0.4873.1000

264744

12-Jun-19

09:31

osfintl.dll_1031

osfintl.dll

16.0.4873.1000

266336

12-Jun-19

09:31

osfintl.dll_1032

osfintl.dll

16.0.4873.1000

273368

12-Jun-19

09:31

osfintl.dll_3082

osfintl.dll

16.0.4873.1000

263752

12-Jun-19

09:31

osfintl.dll_1061

osfintl.dll

16.0.4873.1000

262704

12-Jun-19

08:55

osfintl.dll_1035

osfintl.dll

16.0.4873.1000

262152

12-Jun-19

09:31

osfintl.dll_1036

osfintl.dll

16.0.4873.1000

267304

12-Jun-19

09:31

osfintl.dll_1037

osfintl.dll

16.0.4873.1000

262616

12-Jun-19

09:31

osfintl.dll_1081

osfintl.dll

16.0.4873.1000

276432

12-Jun-19

09:31

osfintl.dll_1050

osfintl.dll

16.0.4873.1000

263272

12-Jun-19

09:31

osfintl.dll_1038

osfintl.dll

16.0.4873.1000

267808

12-Jun-19

08:55

osfintl.dll_1057

osfintl.dll

16.0.4873.1000

261672

12-Jun-19

08:55

osfintl.dll_1040

osfintl.dll

16.0.4873.1000

265288

12-Jun-19

09:31

osfintl.dll_1041

osfintl.dll

16.0.4873.1000

266712

12-Jun-19

09:31

osfintl.dll_1087

osfintl.dll

16.0.4873.1000

271832

12-Jun-19

09:31

osfintl.dll_1042

osfintl.dll

16.0.4873.1000

265176

12-Jun-19

09:31

osfintl.dll_1063

osfintl.dll

16.0.4873.1000

265272

12-Jun-19

09:31

osfintl.dll_1062

osfintl.dll

16.0.4873.1000

266288

12-Jun-19

09:31

osfintl.dll_1086

osfintl.dll

16.0.4873.1000

262696

12-Jun-19

08:55

osfintl.dll_1044

osfintl.dll

16.0.4873.1000

261672

12-Jun-19

09:31

osfintl.dll_1043

osfintl.dll

16.0.4873.1000

264744

12-Jun-19

09:31

osfintl.dll_1045

osfintl.dll

16.0.4873.1000

265824

12-Jun-19

09:31

osfintl.dll_1046

osfintl.dll

16.0.4873.1000

263752

12-Jun-19

09:31

osfintl.dll_2070

osfintl.dll

16.0.4873.1000

263752

12-Jun-19

09:31

osfintl.dll_1048

osfintl.dll

16.0.4873.1000

269368

12-Jun-19

09:31

osfintl.dll_1049

osfintl.dll

16.0.4873.1000

270800

12-Jun-19

09:31

osfintl.dll_1051

osfintl.dll

16.0.4873.1000

266808

12-Jun-19

08:55

osfintl.dll_1060

osfintl.dll

16.0.4873.1000

263784

12-Jun-19

08:55

osfintl.dll_2074

osfintl.dll

16.0.4873.1000

263272

12-Jun-19

09:31

osfintl.dll_9242

osfintl.dll

16.0.4873.1000

265320

12-Jun-19

09:31

osfintl.dll_1053

osfintl.dll

16.0.4873.1000

262696

12-Jun-19

09:31

osfintl.dll_1054

osfintl.dll

16.0.4873.1000

271832

12-Jun-19

09:31

osfintl.dll_1055

osfintl.dll

16.0.4873.1000

265768

12-Jun-19

09:31

osfintl.dll_1058

osfintl.dll

16.0.4873.1000

270808

12-Jun-19

09:31

osfintl.dll_1066

osfintl.dll

16.0.4873.1000

267224

12-Jun-19

08:55

osfintl.dll_2052

osfintl.dll

16.0.4873.1000

260568

12-Jun-19

09:31

osfintl.dll_1028

osfintl.dll

16.0.4873.1000

260560

12-Jun-19

09:31

osfintl.dll_1033

osfintl.dll

16.0.4873.1000

261104

12-Jun-19

09:31

minsbproxy.dll

minsbproxy.dll

16.0.4873.1000

58328

12-Jun-19

08:50

minsbroamingproxy.dll

minsbroamingproxy.dll

16.0.4873.1000

58328

12-Jun-19

08:50

msosb.dll

msosb.dll

16.0.4873.1000

225776

12-Jun-19

08:50

osf.dll

osf.dll

16.0.4873.1000

1832968

12-Jun-19

08:50

osfproxy.dll

osfproxy.dll

16.0.4873.1000

58328

12-Jun-19

08:50

osfroamingproxy.dll

osfroamingproxy.dll

16.0.4873.1000

58328

12-Jun-19

08:50

osfshared.dll

osfshared.dll

16.0.4864.1000

236000

11-Jun-19

03:43

osfui.dll

osfui.dll

16.0.4864.1000

504800

11-Jun-19

03:43

websb.dll

websandbox.dll

16.0.4873.1000

889304

12-Jun-19

08:50

minsbproxy.dll

minsbproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

minsbproxy.dll.x86

minsbproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

minsbroamingproxy.dll

minsbroamingproxy.dll

16.0.4873.1000

51696

12-Jun-19

08:50

minsbroamingproxy.dll.x86

minsbroamingproxy.dll

16.0.4873.1000

51696

12-Jun-19

08:55

msosb.dll

msosb.dll

16.0.4873.1000

161328

12-Jun-19

08:50

msosb.dll.x86

msosb.dll

16.0.4873.1000

161328

12-Jun-19

08:55

osfproxy.dll

osfproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

osfproxy.dll.x86

osfproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

osfroamingproxy.dll

osfroamingproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:50

osfroamingproxy.dll.x86

osfroamingproxy.dll

16.0.4873.1000

51672

12-Jun-19

08:55

How to get help and support for this security update

Help for installing updates: Protect yourself online

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

Local support according to your country: International Support

Need more help?

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