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HistoryJan 07, 2017 - 12:00 a.m.

MS11-087: Vulnerability in Windows kernel-mode drivers could allow remote code execution: December 13, 2011

2017-01-0700:00:00
Microsoft
support.microsoft.com
22
windows
vulnerability
remote code execution
security update
cve-2011-3402
workaround
known issues
file information

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

AI Score

6.4

Confidence

Low

EPSS

0.969

Percentile

99.7%

MS11-087: Vulnerability in Windows kernel-mode drivers could allow remote code execution: December 13, 2011

INTRODUCTION

Microsoft has released security bulletin MS11-087. To view the complete security bulletin, visit one of the following Microsoft websites:

How to obtain help and support for this security update

Help installing updates:
Support for Microsoft Update

Security solutions for IT professionals:
TechNet Security Troubleshooting and Support

Help protect your computer that is running Windows from viruses and malware:
Virus Solution and Security Center

Local support according to your country:
International Support

Fix it for me

A Fix it solution is available to enable the workaround for CVE-2011-3402.

The Fix it solution that is described in this section is not intended to be a replacement for any security update. We recommend that you always install the latest security updates. However, we offer this Fix it solution as a workaround option for some scenarios.

For more information about this workaround, visit the following Microsoft Security Advisory webpage:
http://technet.microsoft.com/security/bulletin/MS11-087 The bulletin provides more information about the issue and includes the following:

  • The scenarios in which you might apply or disable the workaround
  • Mitigating factors
  • Workarounds
  • Frequently asked questions

Specifically, to see this information, expand the Workarounds section that is related to CVE-2011-3402.

To enable or disable this Fix it solution, click the Fix it button or link under the

Enable heading or under theDisable heading. Click

Run in theFile Download dialog box, and then follow the steps in the Fix it wizard.

Enable Disable
Notes
  • These wizards may be in English only. However, the automatic fixes also work for other language versions of Windows.
  • If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD, and then you can run it on the computer that has the problem.

Known issues with this workaround

  • Applications that have functionality that relies on the T2embed.dll file, such as applications that generate PDF files, may not work as expected. For example, Microsoft Office software will be unable to generate PDF files.
  • After you apply this workaround on a system that is running Windows XP or Windows Server 2003, you may be reoffered security updates 982132 and 972270. You will be unable to install these reoffered updates. The reoffering is a detection logic issue. Users who have previously applied both security updates successfully can ignore the reoffer.
  • Microsoft Office 2003 software that has the Microsoft Office Compatibility Pack installed may not open Microsoft Office PowerPoint 2007 (.pptx) files. Instead, you receive the following message:This file was created by a newer version of Microsoft PowerPoint. Do you want to download a compatibility pack so that you can work with this file? You receive this message even though the Microsoft Office Compatibility Pack is already installed.

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 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 and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Windows XP and Windows Server 2003 file information

  • The files that apply to a specific milestone (SPn) and service branch (QFE, GDR) are noted in the “SP requirement” and “Service branch” columns.
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. QFE service branches contain hotfixes in addition to widely released fixes.
  • In addition to the files that are listed in these tables, this software update also installs an associated security catalog file (KBnumber.cat) that is signed with a Microsoft digital signature.

For all supported x86-based versions of Windows XP

File name File version File size Date Time Platform SP requirement Service branch
Win32k.sys 5.1.2600.6178 1,859,584 23-Nov-2011 13:25 x86 SP3 SP3GDR
Win32k.sys 5.1.2600.6178 1,868,544 23-Nov-2011 13:29 x86 SP3 SP3QFE

For all supported x64-based versions of Windows Server 2003 and of Windows XP Professional x64 edition

File name File version File size Date Time Platform SP requirement Service branch
Win32k.sys 5.2.3790.4938 4,573,184 24-Nov-2011 08:35 x64 SP2 SP2GDR
Win32k.sys 5.2.3790.4938 4,591,616 24-Nov-2011 08:30 x64 SP2 SP2QFE

For all supported x86-based versions of Windows Server 2003

File name File version File size Date Time Platform SP requirement Service branch
Win32k.sys 5.2.3790.4938 1,861,632 23-Nov-2011 14:36 x86 SP2 SP2GDR
Win32k.sys 5.2.3790.4938 1,872,384 23-Nov-2011 14:17 x86 SP2 SP2QFE

For all supported IA-64-based versions of Windows Server 2003

File name File version File size Date Time Platform SP requirement Service branch
Win32k.sys 5.2.3790.4938 5,602,816 24-Nov-2011 08:33 IA-64 SP2 SP2GDR
Win32k.sys 5.2.3790.4938 5,621,248 24-Nov-2011 08:30 IA-64 SP2 SP2QFE

Windows Vista and Windows Server 2008 file information

  • The files that apply to a specific product, milestone (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
    —|—|—|—
    6.0.6002.18xxx| Windows Vista SP2 and Windows Server 2008 SP2| SP2| GDR
    6.0.6002.22xxx| Windows Vista SP2 and Windows Server 2008 SP2| SP2| 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 the MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Vista and Windows Server 2008

File name File version File size Date Time Platform
Win32k.sys 6.0.6002.18544 2,043,904 23-Nov-2011 13:37 x86
Win32k.sys 6.0.6002.22745 2,052,096 23-Nov-2011 13:35 x86

For all supported x64-based versions of Windows Vista and Windows Server 2008

File name File version File size Date Time Platform
Win32k.sys 6.0.6002.18544 2,764,800 23-Nov-2011 13:57 x64
Win32k.sys 6.0.6002.22745 2,767,360 23-Nov-2011 13:36 x64

For all supported IA-64-based versions of Windows Server 2008

File name File version File size Date Time Platform
Win32k.sys 6.0.6002.18544 6,648,832 23-Nov-2011 13:38 IA-64
Win32k.sys 6.0.6002.22745 6,658,560 23-Nov-2011 13:36 IA-64

Additional file information for Windows Vista and Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and Windows Server 2008

File name Package_1_for_kb2639417_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 2,385
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_1_for_kb2639417~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 3,102
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 2,227
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 2,940
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_3_for_kb2639417_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 2,227
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_3_for_kb2639417~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 2,940
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_2_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,681
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_2~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,708
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,426
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,446
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,677
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,704
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,418
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,438
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,681
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,708
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_bf~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,426
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server~31bf3856ad364e35~x86~~6.0.1.2.mum
File version Not Applicable
File size 1,446
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Update-bf.mum
File version Not Applicable
File size 3,020
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name X86_15eba5e04425d1c3628cf15d7eddbc55_31bf3856ad364e35_6.0.6002.18544_none_7448bdbccd6ebb75.manifest
File version Not Applicable
File size 694
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name X86_eeed88a208fc8cbf82e0cfad135f2acf_31bf3856ad364e35_6.0.6002.22745_none_5c51dbffe7a63743.manifest
File version Not Applicable
File size 694
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name X86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.18544_none_bab2bc4a97c9dd3c.manifest
File version Not Applicable
File size 6,543
Date (UTC) 23-Nov-2011
Time (UTC) 16:30
Platform Not Applicable
File name X86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.22745_none_bb3d5b45b0e69384.manifest
File version Not Applicable
File size 6,543
Date (UTC) 23-Nov-2011
Time (UTC) 16:00
Platform Not Applicable

Additional files for all supported x64-based versions of Windows Vista and Windows Server 2008

File name Amd64_c167fb4d416ae4e2fce1560f36235fda_31bf3856ad364e35_6.0.6002.18544_none_27280981728ba91e.manifest
File version Not Applicable
File size 1,038
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Amd64_c1a5d0737a69a192855420416ff20a02_31bf3856ad364e35_6.0.6002.22745_none_f950ee30ac983cc5.manifest
File version Not Applicable
File size 1,038
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.18544_none_16d157ce50274e72.manifest
File version Not Applicable
File size 6,559
Date (UTC) 23-Nov-2011
Time (UTC) 16:53
Platform Not Applicable
File name Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.22745_none_175bf6c9694404ba.manifest
File version Not Applicable
File size 6,559
Date (UTC) 23-Nov-2011
Time (UTC) 15:44
Platform Not Applicable
File name Package_1_for_kb2639417_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 2,611
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_1_for_kb2639417~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 3,552
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 2,451
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 3,388
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_3_for_kb2639417_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 2,451
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_3_for_kb2639417~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 3,388
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_2_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,693
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_2~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,720
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,434
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_client~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,454
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,689
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,716
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,426
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,446
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,693
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,720
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_bf~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,434
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server~31bf3856ad364e35~amd64~~6.0.1.2.mum
File version Not Applicable
File size 1,454
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Update-bf.mum
File version Not Applicable
File size 3,044
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.18544_none_212602208488106d.manifest
File version Not Applicable
File size 5,013
Date (UTC) 23-Nov-2011
Time (UTC) 16:16
Platform Not Applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.22745_none_21b0a11b9da4c6b5.manifest
File version Not Applicable
File size 5,013
Date (UTC) 23-Nov-2011
Time (UTC) 15:47
Platform Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008

File name Ia64_3c18e2254f71b97d54647447077058b8_31bf3856ad364e35_6.0.6002.18544_none_9ecc51e4eb6105d8.manifest
File version Not Applicable
File size 1,036
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Ia64_abe3beb6ed278ac414180725ed4b99c3_31bf3856ad364e35_6.0.6002.22745_none_57a3ec69395f6964.manifest
File version Not Applicable
File size 1,036
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.18544_none_bab4604097c7e638.manifest
File version Not Applicable
File size 6,551
Date (UTC) 23-Nov-2011
Time (UTC) 16:03
Platform Not Applicable
File name Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.22745_none_bb3eff3bb0e49c80.manifest
File version Not Applicable
File size 6,551
Date (UTC) 23-Nov-2011
Time (UTC) 15:30
Platform Not Applicable
File name Package_1_for_kb2639417_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 2,281
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_1_for_kb2639417~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 3,212
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 2,281
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_2_for_kb2639417~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 3,212
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,521
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_1~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,544
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,422
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_sc~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,441
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,525
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_1~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,548
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server_bf~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,430
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Package_for_kb2639417_server~31bf3856ad364e35~ia64~~6.0.1.2.mum
File version Not Applicable
File size 1,449
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Update-bf.mum
File version Not Applicable
File size 2,221
Date (UTC) 24-Nov-2011
Time (UTC) 05:57
Platform Not Applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.18544_none_212602208488106d.manifest
File version Not Applicable
File size 5,013
Date (UTC) 23-Nov-2011
Time (UTC) 16:16
Platform Not Applicable
File name Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6002.22745_none_21b0a11b9da4c6b5.manifest
File version Not Applicable
File size 5,013
Date (UTC) 23-Nov-2011
Time (UTC) 15:47
Platform Not Applicable

Windows 7 and Windows Server 2008 R2 file information

  • 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
    —|—|—|—
    6.1.7600.16xxx| Windows 7 and Windows Server 2008 R2| RTM| GDR
    6.1.7600.20xxx| Windows 7 and Windows Server 2008 R2| RTM| LDR
    6.1.7601.17xxx| Windows 7 and Windows Server 2008 R2| SP1| GDR
    6.1.7601.21xxx| Windows 7 and 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 the MUM files (.mum) that are installed for each environment are listed separately in the “Additional file information for Windows 7 and Windows Server 2008 R2” section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name File version File size Date Time Platform
Win32k.sys 6.1.7600.16920 2,340,352 24-Nov-2011 04:23 x86
Win32k.sys 6.1.7600.21097 2,349,568 24-Nov-2011 04:26 x86
Win32k.sys 6.1.7601.17730 2,342,912 24-Nov-2011 04:25 x86
Win32k.sys 6.1.7601.21866 2,350,080 24-Nov-2011 04:21 x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name File version File size Date Time Platform
Win32k.sys 6.1.7600.16920 3,141,632 24-Nov-2011 05:00 x64
Win32k.sys 6.1.7600.21097 3,146,240 24-Nov-2011 04:52 x64
Win32k.sys 6.1.7601.17730 3,145,216 24-Nov-2011 04:52 x64
Win32k.sys 6.1.7601.21866 3,146,752 24-Nov-2011 04:45 x64

For all supported IA-64-based versions of Windows Server 2008 R2

File name File version File size Date Time Platform
Win32k.sys 6.1.7600.16920 7,438,848 24-Nov-2011 04:20 IA-64
Win32k.sys 6.1.7600.21097 7,443,968 24-Nov-2011 03:58 IA-64
Win32k.sys 6.1.7601.17730 7,435,264 24-Nov-2011 03:48 IA-64
Win32k.sys 6.1.7601.21866 7,442,944 24-Nov-2011 03:46 IA-64

Additional file information for Windows 7 and Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

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Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

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Additional files for all supported IA-64-based versions of Windows Server 2008 R2

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Date (UTC) 24-Nov-2011
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Date (UTC) 24-Nov-2011
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Date (UTC) 24-Nov-2011
Time (UTC) 07:37
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Date (UTC) 24-Nov-2011
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Time (UTC) 07:34
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CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

AI Score

6.4

Confidence

Low

EPSS

0.969

Percentile

99.7%