Security update for Adobe Flash Player: May 9, 2017

Summary

This security update resolves vulnerabilities in Adobe Flash Player if it's 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 8.1, or Windows RT 8.1.

To learn more about the vulnerability, see ADV170006.

More Information

Important

  • All future 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.

Deployment information

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

Security update deployment information: May 9, 2017

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.
 

Detection and deployment

Detection and deployment tools and guidance

Security Central You can manage the software and security updates that you have to deploy to the servers, desktops, and mobile systems in your organization. For more information, see the TechNet Update Management Center. The
Microsoft TechNet Security website provides more information about security in Microsoft products.

You can download security updates from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content that is made available through Windows Update and Microsoft Update. This includes security updates, drivers, and service packs. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.

Detection and deployment guidance Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base article 961747.

Microsoft Baseline Security Analyzer Microsoft Baseline Security Analyzer (MBSA) lets administrators scan local and remote systems for missing security updates and common security misconfigurations. For more information, see Microsoft Baseline Security Analyzer.

Note Customers who use legacy software that is not supported by the latest release of MBSA, Microsoft Update, or Windows Server Update Services should see the "Legacy Product Support" section of Microsoft Baseline Security Analyzer. Here, you can find information about how to create comprehensive security update detection by using legacy tools.

Windows Server Update Services Windows Server Update Services (WSUS) lets information technology administrators deploy the latest Microsoft product updates to computers that are running Windows. For more information about how to deploy security updates by using Windows Server Update Services, see the following Microsoft TechNet topic:

Windows Server Update Services

Systems Management Server The following table provides the Microsoft Systems Management Server (SMS) detection and deployment summary for this security update.

Software SMS 2003 with ITMU System Center Configuration Manager
Windows 8.1 for 32-bit systems No Yes
Windows 8.1 for 64-bit systems No Yes
Windows Server 2012 and Windows Server 2012 R2 No Yes

Note Microsoft discontinued support for SMS 2.0 on April 12, 2011. For SMS 2003, Microsoft also discontinued support for the Security Update Inventory Tool (SUIT) on April 12, 2011. Customers are encouraged to upgrade to System Center Configuration Manager.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are supported by Windows Server Update Services. For more information, see Systems Management Server 2003.

System Center Configuration Manager uses WSUS 3.0 to detect updates. For more information, see System Center.

For more detailed information, see Microsoft Knowledge Base article 910723: Summary list of monthly detection and deployment guidance articles.

Update Compatibility Evaluator and Application Compatibility Toolkit

Updates frequently write to the same files and registry settings that are required for your applications to run. This can trigger incompatibilities and increase the time that is required to deploy security updates. You can streamline the testing and validation of Windows updates against installed applications by using the Update Compatibility Evaluator components that are included in the Application Compatibility Toolkit (ACT).

The Application Compatibility Toolkit contains the necessary tools and documentation to evaluate and decrease application compatibility issues before you deploy a Windows update, a Microsoft security update, or a new version of Windows Internet Explorer in your environment.

Windows Server 2012 File Information

File hash information
File name SHA1 hash SHA256 hash
Windows8-RT-KB4020821-X64.msu AE656B34B15996003E6EA26B9A97B7F34C942919 CC4ABBD3F887E640344E4E89D3F8646A4D665C0E50E7FF67977D0EF667626E38

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

Windows Server 2012 file information

Note

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

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 28-Apr-2017 22:47 Not applicable
Flash.ocx 25.0.0.171 28,249,048 28-Apr-2017 22:47 x64
Flashutil_activex.dll 25.0.0.171 702,936 28-Apr-2017 22:47 x64
Flashutil_activex.exe 25.0.0.171 973,784 28-Apr-2017 22:47 x64
Activex.vch Not applicable 737,950 28-Apr-2017 22:47 Not applicable
Flash.ocx 25.0.0.171 21,805,528 28-Apr-2017 22:47 x86
Flashplayerapp.exe 25.0.0.171 835,040 28-Apr-2017 22:47 x86
Flashplayercplapp.cpl 25.0.0.171 177,120 28-Apr-2017 22:47 Not applicable
Flashutil_activex.dll 25.0.0.171 619,480 28-Apr-2017 22:47 x86
Flashutil_activex.exe 25.0.0.171 1,356,256 28-Apr-2017 22:47 x86

Windows 8.1 and Windows Server 2012 R2 File Information

File hash information
File name SHA1 hash SHA256 hash
Windows8.1-KB4020821-X64.msu E75817F6D9D75107704002FF9C5BF643A32ADFEA 64B67642E06E28B6EFB3556AD40C6D5707BB6DC3077FD86E49FE4E81626F106D
Windows8.1-KB4020821-ARM.msu 68962F2183A60F523511ABAE2B1166F9CC814454 62CF06F3A5953E138D62C4DB6761618BF54F1B4EBF069CE90C4BDBBE216972AB
Windows8.1-KB4020821-X86.msu 3723CF7FBE046BFC5F4F37ABA91ABA54E3C66668 B374A057C19F7E3DF2EC69BFE90FB95FA59BFEA4179BFFDEA095EF95D7DC06AE

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

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.

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 28-Apr-2017 22:44 Not applicable
Flash.ocx 25.0.0.171 28,249,592 28-Apr-2017 22:44 x64
Flashutil_activex.dll 25.0.0.171 703,480 28-Apr-2017 22:44 x64
Flashutil_activex.exe 25.0.0.171 974,328 28-Apr-2017 22:44 x64
Activex.vch Not applicable 737,950 28-Apr-2017 22:44 Not applicable
Flash.ocx 25.0.0.171 21,806,072 28-Apr-2017 22:44 x86
Flashplayerapp.exe 25.0.0.171 835,576 28-Apr-2017 22:44 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 28-Apr-2017 22:44 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 28-Apr-2017 22:44 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 28-Apr-2017 22:44 x86
For all supported ARM-based versions
File name File version File size Date Time Platform
Flash.ocx 25.0.0.171 18,784,248 28-Apr-2017 22:44 Not applicable
Flashplayerapp.exe 25.0.0.171 814,584 28-Apr-2017 22:44 Not applicable
Flashplayercplapp.cpl 25.0.0.171 163,320 28-Apr-2017 22:44 Not applicable
Flashutil_activex.dll 25.0.0.171 545,784 28-Apr-2017 22:44 Not applicable
Flashutil_activex.exe 25.0.0.171 833,016 28-Apr-2017 22:44 Not applicable
For all supported x86-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 737,950 28-Apr-2017 22:44 Not applicable
Flash.ocx 25.0.0.171 21,806,072 28-Apr-2017 22:44 x86
Flashplayerapp.exe 25.0.0.171 835,576 28-Apr-2017 22:44 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 28-Apr-2017 22:44 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 28-Apr-2017 22:44 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 28-Apr-2017 22:44 x86

Windows 10 RTM File Information

File hash information
File name SHA1 hash SHA256 hash
Windows10.0-KB4020821-X64.msu 78BE6D335926F66544F7D4A3A3E024962F6DF2C9 E2C6A138ACB35EA4D8F700CB3420AB9330F80E63328F2CC0932BAA5050597B3A
Windows10.0-KB4020821-X86.msu 643F7F77016AB870F0EBDD038E7058B869F5AE3C 806FDB95EB42F1DA4F4926EDFB0A4083A2C65653BADAF095EBCEB1F19C9E88F5

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

Windows 10 file information

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 29-Apr-2017 00:39 Not applicable
Flash.ocx 25.0.0.171 28,249,592 29-Apr-2017 00:39 x64
Flashutil_activex.dll 25.0.0.171 703,480 29-Apr-2017 00:39 x64
Flashutil_activex.exe 25.0.0.171 974,328 29-Apr-2017 00:39 x64
Activex.vch Not applicable 737,950 29-Apr-2017 00:39 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:39 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:39 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:39 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:39 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:39 x86
For all supported x86-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 737,950 29-Apr-2017 00:39 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:39 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:39 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:39 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:39 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:39 x86

Windows 10 Version 1511 File Information

File hash information
File name SHA1 hash SHA256 hash
Windows10.0-KB4020821-x64.msu B806AE9FBD43F3B5272931B4924571DFC0DC48CF B24F0FF5EF02F7C8BF4E3D88C2DC46F6393204629FC0C2EFA9C3E81A73F6CBEF
Windows10.0-KB4020821-x86.msu 13FF7897ADA444F0975D56C8C7D09A1728D638EA D1C5672DB44B57328198D6057B4989AC1E5F3D86EC29578376E8D7EFB06126DE

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

Windows 10 file information

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 29-Apr-2017 00:51 Not applicable
Flash.ocx 25.0.0.171 28,249,592 29-Apr-2017 00:51 x64
Flashutil_activex.dll 25.0.0.171 703,480 29-Apr-2017 00:51 x64
Flashutil_activex.exe 25.0.0.171 974,328 29-Apr-2017 00:51 x64
Activex.vch Not applicable 737,950 29-Apr-2017 00:51 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:51 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:51 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:51 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:51 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:51 x86
For all supported x86-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 737,950 29-Apr-2017 00:51 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:51 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:51 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:51 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:51 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:51 x86

Windows 10 Version 1607 and Windows Server 2016 File Information

File hash information
File name SHA1 hash SHA256 hash
Windows10.0-KB4020821-X64.msu F4D359A20B707CE63CF20539C451173C4D4CE1D1 14B9B47FD9646B0282A6D49BAF8EB7F17EE1CB56A0BD54C9CA480FD837E58518
Windows10.0-KB4020821-X86.msu 3126982EA147183296220D5BAC1F051455B0E3BB 032D91F2088B75E273DE832C4A4F566EF80F8124B85337B3917123B883B72223

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

Windows 10 file information

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 29-Apr-2017 00:59 Not applicable
Flash.ocx 25.0.0.171 28,249,592 29-Apr-2017 00:59 x64
Flashutil_activex.dll 25.0.0.171 703,480 29-Apr-2017 00:59 x64
Flashutil_activex.exe 25.0.0.171 974,328 29-Apr-2017 00:59 x64
Activex.vch Not applicable 737,950 29-Apr-2017 00:59 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:59 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:59 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:59 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:59 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:59 x86
For all supported x86-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 737,950 29-Apr-2017 00:59 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 00:59 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 00:59 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 00:59 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 00:59 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 00:59 x86

Windows 10 Version 1703 File Information

File hash information
File name SHA1 hash SHA256 hash
Windows10.0-KB4020821-X64.msu F864406D91F9C5DED327A3690C3FF000248F9EAB 668F67B4800EEFD31D9EA1A0CABC6C7A852B00C58A5431001CC1ACFB072E81A6
Windows10.0-KB4020821-X86.msu AE35AC7B47C47508ABF580A544DC2F5D9BB7426B B325A8956FAEE60AB2B30D623EC4830CED324CFCC7D27CCFF92359EAE6FF31C6

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

Windows 10 file information

For all supported x64-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 160,734 29-Apr-2017 01:05 Not applicable
Flash.ocx 25.0.0.171 28,249,592 29-Apr-2017 01:05 x64
Flashutil_activex.dll 25.0.0.171 703,480 29-Apr-2017 01:05 x64
Flashutil_activex.exe 25.0.0.171 974,328 29-Apr-2017 01:05 x64
Activex.vch Not applicable 737,950 29-Apr-2017 01:05 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 01:05 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 01:05 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 01:05 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 01:05 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 01:05 x86
For all supported x86-based versions
File name File version File size Date Time Platform
Activex.vch Not applicable 737,950 29-Apr-2017 01:05 Not applicable
Flash.ocx 25.0.0.171 21,806,072 29-Apr-2017 01:05 x86
Flashplayerapp.exe 25.0.0.171 835,576 29-Apr-2017 01:05 x86
Flashplayercplapp.cpl 25.0.0.171 177,656 29-Apr-2017 01:05 Not applicable
Flashutil_activex.dll 25.0.0.171 620,024 29-Apr-2017 01:05 x86
Flashutil_activex.exe 25.0.0.171 1,356,792 29-Apr-2017 01:05 x86