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Summary

This security update resolves vulnerabilities in Adobe Flash Player that is installed on any supported edition of Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows 10, Windows 10 Version 1511, Windows 10 Version 1607, Windows 10 Version 1703, Windows 8.1, or Windows RT 8.1.

To learn more about the vulnerability, go to ADV170018.

More Information

Important

  • All security and nonsecurity updates for Windows Server 2012 R2, Windows 8.1, and Windows RT 8.1 require the installation of update 2919355. We recommend that you install update 2919355 on your Windows Server 2012 R2-based, Windows 8.1-based, or Windows RT 8.1-based computer so that you receive future updates.

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you require before you install this update. For more information, see Add language packs to Windows.

  • This update applies to the Windows operating systems that are listed in the "Applies to" section in this article. If you want to install Adobe Flash Player update on an earlier version of Windows, try Adobe Flash Player download.

Known issues

Issue:
After installing this security update, some users may observe a content crash when loading applications that use Adobe Flash Player.

Resolution:
Microsoft has released an update to address this issue. For more information, see KB4051613.

 

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows 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.

Note For Windows RT 8.1, this update is available through Windows Update only.


Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

Security update deployment information: October 10, 2017

Detection and deployment


File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 10 file information

 

 

Windows 10 Version 1703 file information
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 10 file information

File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 10 file information

File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 10 file information

File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 10 file information

File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Windows Server 2012 file information
File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. 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.

Windows Server 2012 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Third-party information disclaimer

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Windows 10 version 1709 file information

File hash information

File name

SHA1 hash

SHA256 hash

Windows10.0-KB4049179-X64.msu

47EFF21486EAB4EF646976186735A532F9B4A93F

B7D1148E8B8BB364A67F7C0A8454D811A4CB4ECFA7C7AEFAA0B4BFDB85BD9D1B

Windows10.0-KB4049179-X86.msu

B76B3E90032B29DCED145DD568436779C429D446

E3D0B9C17B3EF91E692D379D43B6C5F68C1F137A9464DC035AB1436D83343AD1

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

13-Oct-2017

18:08

Not applicable

Flash.ocx

27.0.0.170

28,858,872

13-Oct-2017

18:08

x64

Flashutil_activex.dll

27.0.0.170

708,600

13-Oct-2017

18:08

x64

Flashutil_activex.exe

27.0.0.170

978,424

13-Oct-2017

18:08

x64

Activex.vch

Not applicable

751,770

13-Oct-2017

18:08

Not applicable

Flash.ocx

27.0.0.170

22,285,304

13-Oct-2017

18:08

x86

Flashplayerapp.exe

27.0.0.170

835,576

13-Oct-2017

18:08

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

13-Oct-2017

18:08

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

13-Oct-2017

18:08

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

13-Oct-2017

18:08

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

13-Oct-2017

18:08

Not applicable

Flash.ocx

27.0.0.170

22,285,304

13-Oct-2017

18:08

x86

Flashplayerapp.exe

27.0.0.170

835,576

13-Oct-2017

18:08

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

13-Oct-2017

18:08

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

13-Oct-2017

18:08

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

13-Oct-2017

18:08

x86

File hash information

File name

SHA1 hash

SHA256 hash

Windows10.0-KB4049179-X64.msu

6F35B425361638EEFCD611C73DF9095D50E19F79

E5F121097D43EB7E8DD8F617466340203BD6F736C106FDA45891DBF22474C995

Windows10.0-KB4049179-X86.msu

5F99FCFD4C6AA0FC2BF8C04250BA31E6C1B0AB94

6B416C7E3EFEF0A4AEF50DF6CBA5A02D78AB7FAFB66E22558246F0910659D786

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

13-Oct-2017

00:21

Not applicable

Flash.ocx

27.0.0.170

28,858,872

13-Oct-2017

00:21

x64

Flashutil_activex.dll

27.0.0.170

708,600

13-Oct-2017

00:21

x64

Flashutil_activex.exe

27.0.0.170

978,424

13-Oct-2017

00:21

x64

Activex.vch

Not applicable

751,770

13-Oct-2017

00:21

Not applicable

Flash.ocx

27.0.0.170

22,285,304

13-Oct-2017

00:21

x86

Flashplayerapp.exe

27.0.0.170

835,576

13-Oct-2017

00:21

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

13-Oct-2017

00:21

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

13-Oct-2017

00:21

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

13-Oct-2017

00:21

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

13-Oct-2017

00:21

Not applicable

Flash.ocx

27.0.0.170

22,285,304

13-Oct-2017

00:21

x86

Flashplayerapp.exe

27.0.0.170

835,576

13-Oct-2017

00:21

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

13-Oct-2017

00:21

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

13-Oct-2017

00:21

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

13-Oct-2017

00:21

x86

Windows 10 Version 1607 and Windows Server 2016 file information

File hash information

File name

SHA1 hash

SHA256 hash

Windows10.0-KB4049179-X64.msu

DA19323FA9780827DE45133164C58F4AAEA2CA50

F4D3020AC0FE961FFA362157BF26401C0937F5273CA8CA3B467229D9E751DF0C

Windows10.0-KB4049179-X86.msu

5E38B5D520CEE00FD3F71654D9B081CC7891B7EB

440F8F234492C927659EF5239EE3C237B234EA55B26ACF2C00BD20290BE5F367

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

12-Oct-2017

22:27

Not applicable

Flash.ocx

27.0.0.170

28,858,872

12-Oct-2017

22:27

x64

Flashutil_activex.dll

27.0.0.170

708,600

12-Oct-2017

22:27

x64

Flashutil_activex.exe

27.0.0.170

978,424

12-Oct-2017

22:27

x64

Activex.vch

Not applicable

751,770

12-Oct-2017

22:27

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:27

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:27

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:27

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:27

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:27

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

12-Oct-2017

22:27

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:27

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:27

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:27

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:27

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:27

x86

Windows 10 Version 1511 file information

File hash information

File name

SHA1 hash

SHA256 hash

Windows10.0-KB4049179-X64.msu

1AD267E10BFB48A966AD3A9C3C6897712C13CB6D

42A240700E4A14941AF5D55ED885E9E9D71E471EE7F9805513598DC5D748A852

Windows10.0-KB4049179-X86.msu

5921038BF7FF359AEBF3366A929F8A4996C3111F

93BC61812F49303172C11A6395C625D4288DFDEFC6C64AB8E3DDF2853C055ACD

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

12-Oct-2017

22:23

Not applicable

Flash.ocx

27.0.0.170

28,858,872

12-Oct-2017

22:23

x64

Flashutil_activex.dll

27.0.0.170

708,600

12-Oct-2017

22:23

x64

Flashutil_activex.exe

27.0.0.170

978,424

12-Oct-2017

22:23

x64

Activex.vch

Not applicable

751,770

12-Oct-2017

22:23

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:23

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:23

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:23

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:23

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:23

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

12-Oct-2017

22:23

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:23

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:23

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:23

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:23

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:23

x86

Windows 10 RTM file information

File hash information

File name

SHA1 hash

SHA256 hash

Windows10.0-KB4049179-X64.msu

9C6AC6E44BE123A319351ED6515F3196ECF418AE

96ECCAF8F1D6B96D8A97CF45F575C5169D283A4D954F888EBB671238A6DAD815

Windows10.0-KB4049179-X86.msu

F5B7A90A380C25554391E4C6201073847D0346B2

B75C5D37B4264FA4B0C689E8BD45A841E79A0B623726864D46E3F6EB5E407880

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

12-Oct-2017

22:22

Not applicable

Flash.ocx

27.0.0.170

28,858,872

12-Oct-2017

22:22

x64

Flashutil_activex.dll

27.0.0.170

708,600

12-Oct-2017

22:22

x64

Flashutil_activex.exe

27.0.0.170

978,424

12-Oct-2017

22:22

x64

Activex.vch

Not applicable

751,770

12-Oct-2017

22:22

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:22

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:22

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:22

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:22

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:22

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

12-Oct-2017

22:22

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:22

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:22

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:22

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:22

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:22

x86

Windows 8.1 and Windows Server 2012 R2 file information

File hash information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB4049179-X64.msu

7C81C8F9643389E2874A17826F93E3D5360BB197

0BA3186EB7DD761FE3BE4DA018D6355199308BCE5AA86A7AA105C05318B1DB6C

Windows8.1-KB4049179-ARM.msu

615C33DCB8FCE8834D8DD9C39C7277D4B8A83B9A

C3B9B815FAD0D7C6D4F19FC47BB24AAE5624200FD4330B215DE222A57D53A253

Windows8.1-KB4049179-X86.msu

152051796933310078C683767E381CFA831EC028

9AC473AFBBBCD703EBA67E5E7E57F319A665203BA19F7A4538B77E0346175763

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

12-Oct-2017

22:25

Not applicable

Flash.ocx

27.0.0.170

28,858,872

12-Oct-2017

22:25

x64

Flashutil_activex.dll

27.0.0.170

708,600

12-Oct-2017

22:25

x64

Flashutil_activex.exe

27.0.0.170

978,424

12-Oct-2017

22:25

x64

Activex.vch

Not applicable

751,770

12-Oct-2017

22:25

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:25

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:25

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:25

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:25

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:25

x86

For all supported ARM-based versions

File name

File version

File size

Date

Time

Platform

Flash.ocx

27.0.0.170

19,161,080

12-Oct-2017

22:25

Not applicable

Flashplayerapp.exe

27.0.0.170

814,584

12-Oct-2017

22:25

Not applicable

Flashplayercplapp.cpl

27.0.0.170

163,320

12-Oct-2017

22:25

Not applicable

Flashutil_activex.dll

27.0.0.170

548,856

12-Oct-2017

22:25

Not applicable

Flashutil_activex.exe

27.0.0.170

836,600

12-Oct-2017

22:25

Not applicable

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

751,770

12-Oct-2017

22:25

Not applicable

Flash.ocx

27.0.0.170

22,285,304

12-Oct-2017

22:25

x86

Flashplayerapp.exe

27.0.0.170

835,576

12-Oct-2017

22:25

x86

Flashplayercplapp.cpl

27.0.0.170

177,656

12-Oct-2017

22:25

Not applicable

Flashutil_activex.dll

27.0.0.170

624,632

12-Oct-2017

22:25

x86

Flashutil_activex.exe

27.0.0.170

1,393,144

12-Oct-2017

22:25

x86

File hash information

File name

SHA1 hash

SHA256 hash

Windows8-RT-KB4049179-X64.msu

4ACA10153999CCA307ACD062585F6B838FC0D91C

ADF48056798E4B05D1B209F6DF08A47EBCD4433DE2B2B84E683A9CBA93744B5A

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Activex.vch

Not applicable

163,550

12-Oct-2017

22:21

Not applicable

Flash.ocx

27.0.0.170

28,858,312

12-Oct-2017

22:21

x64

Flashutil_activex.dll

27.0.0.170

708,040

12-Oct-2017

22:21

x64

Flashutil_activex.exe

27.0.0.170

977,864

12-Oct-2017

22:21

x64

Activex.vch

Not applicable

751,770

12-Oct-2017

22:21

Not applicable

Flash.ocx

27.0.0.170

22,284,744

12-Oct-2017

22:21

x86

Flashplayerapp.exe

27.0.0.170

835,016

12-Oct-2017

22:21

x86

Flashplayercplapp.cpl

27.0.0.170

177,096

12-Oct-2017

22:21

Not applicable

Flashutil_activex.dll

27.0.0.170

624,072

12-Oct-2017

22:21

x86

Flashutil_activex.exe

27.0.0.170

1,392,584

12-Oct-2017

22:21

x86

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