MS16-086: Description of the security update for JScript 5.8 and VBScript 5.8: July 12, 2016

Summary

This security update resolves a vulnerability in the JScript and VBScript scripting engines in Microsoft Windows. The vulnerability could allow remote code execution if a user visits a specially crafted website. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on by using administrative user rights, an attacker who successfully exploited the vulnerabilities could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts that have full user rights.

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-086.

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Important

• 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 need before you install this update. For more information, see Add language packs to Windows.

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 turn on automatic updating, see
Get security updates automatically.

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Method 2: Microsoft Download Center

You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in Microsoft Security Bulletin MS16-086 that corresponds to the version of Windows that you are running.

More Information

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How to obtain help and support for this security update

Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

File Information

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File hash information

File name	SHA1 hash	SHA256 hash
Windows6.1-KB3169658-ia64.msu	1D5937E85E75DC1397436DE5B109165CA3844295	3D8A89F4E8CFF4C13F052342614057C1760CC4C347C644779AAC395D52A634A5
Windows6.1-KB3169658-x64.msu	F7222BBF70112D6CF3319C8DC43EE9A198EA69D3	26F2735C72D2D940713C572C8995663B8E72228E118A82766C76BEDD4A427BD4

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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 2008 R2 file informationNotes

* The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:Version	Product	Milestone	Service branch
6.1.760 1.18xxx	Windows Server 2008 R2	SP1	GDR
6.1.760 1.23xxx	Windows Server 2008 R2	SP1	LDR

• GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
• The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
  For all supported ia64-based versionsFile name| File version| File size| Date| Time| Platform
  —|—|—|—|—|—
  Jscript.dll| 5.8.7601.23471| 1,771,520| 14-Jun-2016| 17:15| IA-64
  Vbscript.dll| 5.8.7601.23471| 1,166,336| 14-Jun-2016| 17:16| IA-64
  Jscript.dll| 5.8.7601.23471| 717,312| 14-Jun-2016| 15:21| x86
  Vbscript.dll| 5.8.7601.23471| 432,128| 14-Jun-2016| 15:21| x86
  For all supported x64-based versionsFile name| File version| File size| Date| Time| Platform
  —|—|—|—|—|—
  Jscript.dll| 5.8.7601.23471| 910,848| 14-Jun-2016| 17:16| x64
  Vbscript.dll| 5.8.7601.23471| 589,824| 14-Jun-2016| 17:16| x64
  Jscript.dll| 5.8.7601.23471| 717,312| 14-Jun-2016| 15:21| x86
  Vbscript.dll| 5.8.7601.23471| 432,128| 14-Jun-2016| 15:21| x86
  Jscript.dll| 5.8.7601.23471| 717,312| 14-Jun-2016| 15:21| x86