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Microsoft security advisory: Description of the security update for Windows Hyper-V: November 10, 2015

Summary
Microsoft has released a security advisory about this issue for IT professionals. The security advisory contains additional security-related information. To learn more about the vulnerability, see https://technet.microsoft.com/security/advisory/3108638.
More information
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 get 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.

Method 2: Microsoft Download Center

You can get 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 the following table that corresponds to the version of Windows that you are running. Determine whether your computer is running the 32 or 64-bit version of Windows.

Windows Server 2008
Windows Server 2008 for x64-based Systems Service Pack 2
(3108604)
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
(3108604)
Windows 8 and Windows 8.1
Windows 8 for x64-based Systems
(Professional and Enterprise editions only)
(3108604)
Windows 8.1 for x64-based Systems
(Professional and Enterprise editions only)
(3108604)
Windows Server 2012 and Windows Server 2012 R2
Windows Server 2012
(3108604)
Windows Server 2012 R2
(3108604)
Windows 10
Windows 10 for x64-based Systems
(Excluding Home editions)
(3108604)
Windows 10 Version 1511 for x64-based Systems
(Excluding Home editions)
(3108604)
Server Core installation option
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
(3108604)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
(3108604)
Windows Server 2012 (Server Core installation)
(3108604)
Windows Server 2012 R2 (Server Core installation)
(3108604)
More information

How to get 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
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service DoS TSE
File Information

File hash information

File nameSHA1 hashSHA256 hash
Windows8.1-KB3108604-x64.msu19579A333517781081A2FA5FFB3D925E910CA5D503E5532F032AF612DCD6A8FE4F8C9AEAA3BF06947E2D58E485D16E7CDE87CDDC
Windows8-RT-KB3108604-x64.msu5F6071ACD425BDAF029A07BD68734B2C781166356E566B10DC3ED6A90933932870D0146051377E6FB99913207B095A66757F9015
Windows6.1-KB3108604-x64.msu6E07CEBFD63DA274B01579ECE15D64E27D9240E3AD6D68AF699BCFC5FA8D5C0D0836F3F4E5DF11BE55284D997340307074C3A148

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 and Windows Server 2012 R2 file information

Notes
  • 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:
    VersionProductMilestoneService branch
    6.3.960 0.17 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • 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 x64-based versions
File nameFile versionFile sizeDateTimePlatform
Hvax64.exe6.3.9600.181191,367,38405-Nov-201513:10x64
Hvix64.exe6.3.9600.181191,398,10405-Nov-201513:10x64
Hvloader.efi6.3.9600.180641,391,44829-Sep-201523:41Not applicable
Hvloader.exe6.3.9600.180641,264,47229-Sep-201523:41x64
Hvservice.sys6.3.9600.1782668,95212-May-201500:24x64
Kdhvcom.dll6.3.9600.1782619,80012-May-201500:24x64

Windows Server 2012 file information

Notes
  • 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
    6.2.920 0.17xxxWindows 8, Windows RT, or Windows Server 2012RTMGDR
    6.2.920 0.21xxxWindows 8, Windows RT, or Windows Server 2012RTMLDR
  • 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 x64-based versions
File nameFile versionFile sizeDateTimePlatform
Hvax64.exe6.2.9200.175651,118,55205-Nov-201515:21x64
Hvix64.exe6.2.9200.175651,131,35205-Nov-201515:21x64
Hvloader.efi6.2.9200.175651,084,24805-Nov-201515:21Not applicable
Hvloader.exe6.2.9200.17565998,23205-Nov-201515:21x64
Hvservice.sys6.2.9200.1643367,81611-Oct-201208:42x64
Kdhvcom.dll6.2.9200.1643319,68811-Oct-201208:42x64
Hvax64.exe6.2.9200.216831,122,64805-Nov-201514:03x64
Hvix64.exe6.2.9200.216831,131,34405-Nov-201514:03x64
Hvloader.efi6.2.9200.216831,084,24005-Nov-201514:03Not applicable
Hvloader.exe6.2.9200.21683998,23205-Nov-201514:03x64
Hvservice.sys6.2.9200.2053467,81611-Oct-201207:29x64
Kdhvcom.dll6.2.9200.2053419,68811-Oct-201207:29x64

Windows 7 and Windows Server 2008 R2 file information

Notes
  • 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 1.18xxxWindows 7 or Windows Server 2008 R2 SP1GDR
    6.1.760 1.23 xxxWindows 7 or 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 x64-based versions
File nameFile versionFile sizeDateTimePlatform
Hvax64.exe6.1.7601.19055597,50405-Nov-201509:25x64
Hvboot.sys6.1.7601.19055118,20805-Nov-201519:10x64
Hvix64.exe6.1.7601.19055636,41605-Nov-201509:25x64
Hvax64.exe6.1.7601.23260598,52805-Nov-201509:27x64
Hvboot.sys6.1.7601.23260118,20805-Nov-201523:31x64
Hvix64.exe6.1.7601.23260636,92805-Nov-201509:27x64
Vmwp.exe6.1.7601.232603,681,28005-Nov-201509:44x64
Properties

Article ID: 3108604 - Last Review: 04/18/2016 21:18:00 - Revision: 4.0

Windows 10, Windows 10 Education, released in July 2015, Windows 10 Enterprise, released in July 2015, Windows 10 Home, released in July 2015, Windows 10 Pro, released in July 2015, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows 8 Enterprise, Windows 8 Pro, Windows 8, Windows RT, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 Service Pack 2

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