Summary
This security update resolves a privately reported vulnerability in Windows. This vulnerability could allow users who have limited rights on an affected system to use Task Scheduler to execute files that they do not have permissions to run. To learn more about the vulnerability, see Microsoft Security Bulletin MS15-028.
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.
Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.
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 the following table that corresponds to the version of Windows you are running.
| Windows version | Download link |
|---|---|
| Windows 7 SP1 |
Download 32-bit (KB3030377)
Download 64-bit (KB3030377) |
| Windows Server 2008 R2 SP1 |
Download 64-bit (KB3030377)
Download Itanium-based (KB3030377) |
| Windows 8 |
Download 32-bit (KB3030377)
Download 64-bit (KB3030377) |
| Windows Server 2012 |
Download 64-bit (KB3030377) |
| Windows 8.1 |
Download 32-bit (KB3030377)
Download 64-bit (KB3030377) |
| Windows Server 2012 R2 |
Download 64-bit (KB3030377) |
More Information
Security update deployment information
File name
| Windows version | File name |
|---|---|
| Windows 7 | For 32-bit, Windows6.1-KB3030377-x86.msu For 64-bit, Windows6.1-KB3030377-x64.msu |
| Windows Server 2008 R2 | For 64-bit, Windows6.1-KB3030377-x64.msu For Itanium-based, Windows6.1-KB3030377-ia64.msu |
| Windows 8 | For 32-bit, Windows8-RT-KB3030377-x86.msu For 64-bit, Windows8-RT-KB3030377-x64.msu |
| Windows Server 2012 | For 64-bit, Windows8-RT-KB3030377-x64.msu |
| Windows 8.1 | For 32-bit, Windows8.1-KB3030377-x86.msu For 64-bit, Windows8.1-KB3030377-x64.msu |
| Windows Server 2012 R2 | For 64-bit, Windows8.1-KB3030377-x64.msu |
Note For Windows RT and Windows RT 8.1, this update is available from Windows Update only.
Installation SwitchesSee Microsoft Knowledge Base Article 934307.
Restart requirementsYou must restart your system after you apply this security update.
Removal information
| Windows version | How to remove the update |
|---|---|
| Windows 7 and Windows Server 2008 R2 | To uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates and select from the list of updates. |
| Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2 | To uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
| Windows RT and Windows RT 8.1 | Click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates. |
Registry key verificationA registry key does not exist to validate the presence of this update.
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 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 6.1.7601.18xxx Windows 7 and Windows Server 2008 R2 SP1 GDR 6.1.7601.22xxx 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.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
For all supported x86-based versions of Windows 7
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.1.7601.18741 | 171,520 | 03-Feb-2015 | 03:12 | x86 |
| Ubpm.dll | 6.1.7601.22948 | 171,520 | 03-Feb-2015 | 03:32 | x86 |
For all supported x64-based versions of Windows 7 and Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.1.7601.18741 | 215,552 | 03-Feb-2015 | 03:31 | x64 |
| Ubpm.dll | 6.1.7601.22948 | 215,040 | 03-Feb-2015 | 03:51 | x64 |
| Ubpm.dll | 6.1.7601.18741 | 171,520 | 03-Feb-2015 | 03:12 | x86 |
| Ubpm.dll | 6.1.7601.22948 | 171,520 | 03-Feb-2015 | 03:32 | x86 |
For all supported IA-64-based versions of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.1.7601.18741 | 488,960 | 03-Feb-2015 | 02:52 | IA-64 |
| Ubpm.dll | 6.1.7601.22948 | 488,960 | 03-Feb-2015 | 02:43 | IA-64 |
| Ubpm.dll | 6.1.7601.18741 | 171,520 | 03-Feb-2015 | 03:12 | x86 |
| Ubpm.dll | 6.1.7601.22948 | 171,520 | 03-Feb-2015 | 03:32 | x86 |
Windows 8 and Windows Server 2012 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 6.2.920 0.16 xxx Windows 8 and Windows Server 2012 RTM GDR 6.2.920 0.20 xxx Windows 8 and Windows Server 2012 RTM 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.
Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
For all supported x86-based versions of Windows 8
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.2.9200.17247 | 243,712 | 24-Jan-2015 | 05:00 | x86 |
| Ubpm.dll | 6.2.9200.21364 | 248,320 | 24-Jan-2015 | 04:46 | x86 |
For all supported x64-based versions of Windows 8 and Windows Server 2012
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.2.9200.17247 | 325,632 | 24-Jan-2015 | 06:42 | x64 |
| Ubpm.dll | 6.2.9200.21364 | 317,952 | 24-Jan-2015 | 05:40 | x64 |
| Ubpm.dll | 6.2.9200.17247 | 243,712 | 24-Jan-2015 | 05:00 | x86 |
| Ubpm.dll | 6.2.9200.21364 | 248,320 | 24-Jan-2015 | 04:46 | x86 |
Windows 8.1 and Windows Server 2012 R2 file information
For all supported x86-based versions of Windows 8.1
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.3.9600.17671 | 162,304 | 30-Jan-2015 | 23:20 | x86 |
For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Ubpm.dll | 6.3.9600.17671 | 203,264 | 30-Jan-2015 | 23:20 | x64 |
File hash information
| File name | SHA1 hash | SHA256 hash |
|---|---|---|
| Windows6.1-KB3030377-ia64.msu | 022DE7B41A2641039A4FCB52F629324E21024690 | BDBFFA9F7FE09136DB35C3D0E64BA0825CA7063863038CE3FEAE8C0F22B09034 |
| Windows6.1-KB3030377-ia64.msu | 21E525F421C9B21DF65426F0D666AC2BE59F02AF | 7612DFE7199601998C9BFC734F2361EA0B5D66AB62D287A9CB805C92EDB15C96 |
| Windows6.1-KB3030377-x64.msu | 84403E576DE8606703954E00ABCC573F24663DEF | 05CCDB1223B74C5E559A102681E0BD33677302367D7A119C9A63B8A8E70FED64 |
| Windows6.1-KB3030377-x64.msu | DC9AA7CF326131F9C4BF25FA2790E68F0DF299AD | 86881AEEA78B33B8E1635998868C4E1FC48E1AF08D3707F01C347F56C5492FC1 |
| Windows6.1-KB3030377-x86.msu | 84BA5F6F713FFE1004F8D2D75677AD98331C3890 | A810150967AE32C9807AFF76EB3C49B3E55772D7F6E8C6ECE89FB7CD25AA3982 |
| Windows6.1-KB3030377-x86.msu | 8E7AEADBA26FD06F5C2C98D8481D96278333094F | D8A37A580E66D05422D1C8F1E2D4874FD96358BC856AA5CACA92030795BC2650 |
| Windows8.1-KB3030377-x64.msu | 4DCBE286AC34E19BE1715B698C5613CF16E51433 | B6FC9F8729F806D7DF1A5EC43609AAAC1CFDEFCE8FEE5ED3B289636F6499428E |
| Windows8.1-KB3030377-x64.msu | E605A90272CEE1A34F52B4B680DEC048D66DB5A5 | BE9859F26076C86CB91F60738AF84B2CEAB82EA41CCEC36A48FA7D44CC3B0100 |
| Windows8.1-KB3030377-x86.msu | EA03F7A1DD9F1DD350575D5EFA5D77AF6C4251E0 | A35739340C1FB274A69BCE2EA5951027DC5E0A6FC79582EAF0862A2465F38749 |
| Windows8.1-KB3030377-x86.msu | F4473F2C6085236CA84C98AA6B49F45FB90F4E25 | 93501A2579A251C43310F5E1EFA075D342839DC74EDEDC0131A44BFA03570395 |
| Windows8-RT-KB3030377-x64.msu | 59F7E0DB4C95DB595F9E7FDDA478C3C2C84CED65 | 2F9888E4CF05EFB44B79FC95E4E3041CE1A24C81DF63946F1387664D175D44DC |
| Windows8-RT-KB3030377-x86.msu | 2DFD090FCA3F543A0B4FC1A8673EDDC1C75885A1 | 8858036530935A66104F2E7DF18CA7CA264119A47193141DA2970666BC1EB20B |
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