Description of the security update for Office 2016: April 10, 2018

Applies to: Office Professional Plus 2016Office Professional 2016Office Standard 2016 More

Summary


This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2018-1028

Note To apply this security update, you must have the release version of Office 2016 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home (see Determining your Office version).

Improvements and fixes


This security update contains improvements and fixes for the following nonsecurity issues:

  • When you try to save a file to a symbolic link that’s linked to a Universal Naming Convention (UNC) path, if you have connection issues, you may not be able to save the file. In addition, you may experience data loss and receive an unexpected error message that resembles the following:

    We’re sorry, something went wrong that might make PowerPoint unstable. Please save your presentations and restart PowerPoint. 

  • Microsoft Word crashes when you edit multi-selected choices in documents in the backstage of Word. 
  • This update adds support for Microsoft Office add-ins that are signed by using catalog signatures in Office 2016.

How to get and install the update


Method 1: Microsoft Update

This update is available from Microsoft 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.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 3: 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.

More Information


Security update deployment information

For deployment information about this update, see security update deployment information: April 10, 2018.

Security update replacement information

This security update replaces previously released security update KB 4011686.

File hash information

Package name Package hash SHA 1 Package hash SHA 2
mso2016-kb4018328-fullfile-x86-glb.exe 38046F280BC3044D28FA79FDB27D2E4D691AC7FF 11B00C3E1391913E093CB5FA4B0186CE332B455B87419907521B99850DB81218
mso2016-kb4018328-fullfile-x64-glb.exe EFB49F35C4FDB820BAB443F88C2703FFFED2BFFE 56D82A18EEC6A89D4F4FAF7E99A0974BE4D05652114E0E54D548BE4DD5461377


File information

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table.

For all supported x86-based versions of Office 2016

File identifier File name File version File size Date Time
firstrun.exe firstrun.exe 16.0.4660.1000 770224 13-Mar-18 02:08
msointl.dll.x86.1025 msointl.dll 16.0.4666.1000 3285728 14-Mar-18 03:29
msointl.dll.x86.1026 msointl.dll 16.0.4666.1000 1883880 14-Mar-18 03:29
msointl.dll.x86.1027 msointl.dll 16.0.4666.1000 1815776 14-Mar-18 03:46
msointl.dll.x86.1029 msointl.dll 16.0.4666.1000 1925864 14-Mar-18 03:29
msointl.dll.x86.1030 msointl.dll 16.0.4666.1000 1755880 14-Mar-18 03:29
msointl.dll.x86.1031 msointl.dll 16.0.4666.1000 1946344 14-Mar-18 03:29
msointl.dll.x86.1032 msointl.dll 16.0.4666.1000 2054888 14-Mar-18 03:29
msointl.dll.x86.3082 msointl.dll 16.0.4666.1000 1823968 14-Mar-18 03:29
msointl.dll.x86.1061 msointl.dll 16.0.4666.1000 1729256 14-Mar-18 03:29
msointl.dll.x86.1069 msointl.dll 16.0.4666.1000 1738464 14-Mar-18 03:46
msointl.dll.x86.1035 msointl.dll 16.0.4666.1000 1736424 14-Mar-18 03:29
msointl.dll.x86.1036 msointl.dll 16.0.4666.1000 1972984 14-Mar-18 03:29
msointl.dll.x86.1110 msointl.dll 16.0.4666.1000 1772264 14-Mar-18 03:46
msointl.dll.x86.1095 msointl.dll 16.0.4666.1000 1828072 14-Mar-18 03:46
msointl.dll.x86.1037 msointl.dll 16.0.4666.1000 2905776 14-Mar-18 03:29
msointl.dll.x86.1081 msointl.dll 16.0.4666.1000 1949920 14-Mar-18 03:29
msointl.dll.x86.1050 msointl.dll 16.0.4666.1000 1739496 14-Mar-18 03:29
msointl.dll.x86.1038 msointl.dll 16.0.4666.1000 1949416 14-Mar-18 03:29
msointl.dll.x86.1057 msointl.dll 16.0.4666.1000 1619688 14-Mar-18 03:29
msointl.dll.x86.1040 msointl.dll 16.0.4666.1000 1764584 14-Mar-18 03:29
msointl.dll.x86.1041 msointl.dll 16.0.4666.1000 2010344 14-Mar-18 03:29
msointl.dll.x86.1087 msointl.dll 16.0.4666.1000 2101480 14-Mar-18 03:29
msointl.dll.x86.1099 msointl.dll 16.0.4666.1000 1938152 14-Mar-18 03:47
msointl.dll.x86.1042 msointl.dll 16.0.4666.1000 2766568 14-Mar-18 03:29
msointl.dll.x86.1063 msointl.dll 16.0.4666.1000 1843432 14-Mar-18 03:29
msointl.dll.x86.1062 msointl.dll 16.0.4666.1000 1829608 14-Mar-18 03:29
msointl.dll.x86.1086 msointl.dll 16.0.4666.1000 1647336 14-Mar-18 03:29
msointl.dll.x86.1044 msointl.dll 16.0.4666.1000 1719008 14-Mar-18 03:29
msointl.dll.x86.1043 msointl.dll 16.0.4666.1000 1769184 14-Mar-18 03:29
msointl.dll.x86.1045 msointl.dll 16.0.4666.1000 1915112 14-Mar-18 03:29
msointl.dll.x86.1046 msointl.dll 16.0.4666.1000 1827048 14-Mar-18 03:29
msointl.dll.x86.2070 msointl.dll 16.0.4666.1000 1834208 14-Mar-18 03:29
msointl.dll.x86.1048 msointl.dll 16.0.4666.1000 1960672 14-Mar-18 03:29
msointl.dll.x86.1049 msointl.dll 16.0.4666.1000 1901800 14-Mar-18 03:29
msointl.dll.x86.1051 msointl.dll 16.0.4666.1000 1969384 14-Mar-18 03:29
msointl.dll.x86.1060 msointl.dll 16.0.4666.1000 1805544 14-Mar-18 03:29
msointl.dll.x86.2074 msointl.dll 16.0.4660.1000 1763560 14-Mar-18 03:29
msointl.dll.x86.9242 msointl.dll 16.0.4666.1000 1792744 14-Mar-18 03:29
msointl.dll.x86.1053 msointl.dll 16.0.4666.1000 1732328 14-Mar-18 03:29
msointl.dll.x86.1054 msointl.dll 16.0.4666.1000 1825000 14-Mar-18 03:29
msointl.dll.x86.1055 msointl.dll 16.0.4666.1000 1996512 14-Mar-18 03:29
msointl.dll.x86.1058 msointl.dll 16.0.4666.1000 1889512 14-Mar-18 03:29
msointl.dll.x86.1066 msointl.dll 16.0.4666.1000 2003176 14-Mar-18 03:29
msointl.dll.x86.2052 msointl.dll 16.0.4666.1000 2320048 14-Mar-18 03:29
msointl.dll.x86.1028 msointl.dll 16.0.4666.1000 2327216 14-Mar-18 03:29
msores.dll msores.dll 16.0.4666.1000 81680616 13-Mar-18 02:07
msores.dll.x86 msores.dll 16.0.4666.1000 81680616 13-Mar-18 02:12
mso.dll.x86 mso.dll 16.0.4678.1000 14382832 14-Mar-18 10:12
msointl.dll.x86.1033 msointl.dll 16.0.4660.1000 1537256 13-Mar-18 02:06

For all supported x64-based versions of Office 2016

File identifier File name File version File size Date Time
firstrun.exe firstrun.exe 16.0.4660.1000 815280 13-Mar-18 02:11
msointl.dll.x64.1025 msointl.dll 16.0.4678.1000 3323112 14-Mar-18 10:44
msointl.dll.x64.1026 msointl.dll 16.0.4678.1000 1907944 14-Mar-18 10:20
msointl.dll.x64.1027 msointl.dll 16.0.4678.1000 1839848 14-Mar-18 10:37
msointl.dll.x64.1029 msointl.dll 16.0.4678.1000 1949928 14-Mar-18 10:44
msointl.dll.x64.1030 msointl.dll 16.0.4678.1000 1779944 14-Mar-18 10:44
msointl.dll.x64.1031 msointl.dll 16.0.4678.1000 1970920 14-Mar-18 10:43
msointl.dll.x64.1032 msointl.dll 16.0.4678.1000 2079464 14-Mar-18 10:44
msointl.dll.x64.3082 msointl.dll 16.0.4678.1000 1848552 14-Mar-18 10:43
msointl.dll.x64.1061 msointl.dll 16.0.4678.1000 1753320 14-Mar-18 10:20
msointl.dll.x64.1069 msointl.dll 16.0.4678.1000 1762536 14-Mar-18 10:37
msointl.dll.x64.1035 msointl.dll 16.0.4678.1000 1760488 14-Mar-18 10:44
msointl.dll.x64.1036 msointl.dll 16.0.4678.1000 1997048 14-Mar-18 10:43
msointl.dll.x64.1110 msointl.dll 16.0.4678.1000 1796840 14-Mar-18 10:37
msointl.dll.x64.1095 msointl.dll 16.0.4678.1000 1852648 14-Mar-18 10:37
msointl.dll.x64.1037 msointl.dll 16.0.4678.1000 2943152 14-Mar-18 10:44
msointl.dll.x64.1081 msointl.dll 16.0.4678.1000 1974504 14-Mar-18 10:44
msointl.dll.x64.1050 msointl.dll 16.0.4678.1000 1764072 14-Mar-18 10:44
msointl.dll.x64.1038 msointl.dll 16.0.4678.1000 1973480 14-Mar-18 10:20
msointl.dll.x64.1057 msointl.dll 16.0.4678.1000 1643752 14-Mar-18 10:20
msointl.dll.x64.1040 msointl.dll 16.0.4678.1000 1788648 14-Mar-18 10:43
msointl.dll.x64.1041 msointl.dll 16.0.4678.1000 2034408 14-Mar-18 10:43
msointl.dll.x64.1087 msointl.dll 16.0.4678.1000 2126048 14-Mar-18 10:44
msointl.dll.x64.1099 msointl.dll 16.0.4678.1000 1962208 14-Mar-18 10:38
msointl.dll.x64.1042 msointl.dll 16.0.4678.1000 2791144 14-Mar-18 10:43
msointl.dll.x64.1063 msointl.dll 16.0.4678.1000 1867496 14-Mar-18 10:44
msointl.dll.x64.1062 msointl.dll 16.0.4678.1000 1853664 14-Mar-18 10:44
msointl.dll.x64.1086 msointl.dll 16.0.4678.1000 1671400 14-Mar-18 10:20
msointl.dll.x64.1044 msointl.dll 16.0.4678.1000 1743080 14-Mar-18 10:44
msointl.dll.x64.1043 msointl.dll 16.0.4678.1000 1793256 14-Mar-18 10:44
msointl.dll.x64.1045 msointl.dll 16.0.4678.1000 1939176 14-Mar-18 10:44
msointl.dll.x64.1046 msointl.dll 16.0.4678.1000 1851624 14-Mar-18 10:44
msointl.dll.x64.2070 msointl.dll 16.0.4678.1000 1858280 14-Mar-18 10:44
msointl.dll.x64.1048 msointl.dll 16.0.4678.1000 1984744 14-Mar-18 10:44
msointl.dll.x64.1049 msointl.dll 16.0.4678.1000 1925864 14-Mar-18 10:44
msointl.dll.x64.1051 msointl.dll 16.0.4678.1000 1993960 14-Mar-18 10:20
msointl.dll.x64.1060 msointl.dll 16.0.4678.1000 1830120 14-Mar-18 10:20
msointl.dll.x64.2074 msointl.dll 16.0.4678.1000 1788136 14-Mar-18 10:44
msointl.dll.x64.9242 msointl.dll 16.0.4678.1000 1817320 14-Mar-18 10:44
msointl.dll.x64.1053 msointl.dll 16.0.4678.1000 1756904 14-Mar-18 10:44
msointl.dll.x64.1054 msointl.dll 16.0.4678.1000 1849064 14-Mar-18 10:44
msointl.dll.x64.1055 msointl.dll 16.0.4678.1000 2021096 14-Mar-18 10:44
msointl.dll.x64.1058 msointl.dll 16.0.4678.1000 1913576 14-Mar-18 10:44
msointl.dll.x64.1066 msointl.dll 16.0.4678.1000 2027752 14-Mar-18 10:20
msointl.dll.x64.2052 msointl.dll 16.0.4678.1000 2344112 14-Mar-18 10:43
msointl.dll.x64.1028 msointl.dll 16.0.4678.1000 2351792 14-Mar-18 10:43
msointl.dll.x86.1025 msointl.dll 16.0.4666.1000 3285728 14-Mar-18 03:29
msointl.dll.x86.1026 msointl.dll 16.0.4666.1000 1883880 14-Mar-18 03:29
msointl.dll.x86.1029 msointl.dll 16.0.4666.1000 1925864 14-Mar-18 03:29
msointl.dll.x86.1030 msointl.dll 16.0.4666.1000 1755880 14-Mar-18 03:29
msointl.dll.x86.1031 msointl.dll 16.0.4666.1000 1946344 14-Mar-18 03:29
msointl.dll.x86.1032 msointl.dll 16.0.4666.1000 2054888 14-Mar-18 03:29
msointl.dll.x86.3082 msointl.dll 16.0.4666.1000 1823968 14-Mar-18 03:29
msointl.dll.x86.1061 msointl.dll 16.0.4666.1000 1729256 14-Mar-18 03:29
msointl.dll.x86.1035 msointl.dll 16.0.4666.1000 1736424 14-Mar-18 03:29
msointl.dll.x86.1036 msointl.dll 16.0.4666.1000 1972984 14-Mar-18 03:29
msointl.dll.x86.1037 msointl.dll 16.0.4666.1000 2905776 14-Mar-18 03:29
msointl.dll.x86.1081 msointl.dll 16.0.4666.1000 1949920 14-Mar-18 03:29
msointl.dll.x86.1050 msointl.dll 16.0.4666.1000 1739496 14-Mar-18 03:29
msointl.dll.x86.1038 msointl.dll 16.0.4666.1000 1949416 14-Mar-18 03:29
msointl.dll.x86.1057 msointl.dll 16.0.4666.1000 1619688 14-Mar-18 03:29
msointl.dll.x86.1040 msointl.dll 16.0.4666.1000 1764584 14-Mar-18 03:29
msointl.dll.x86.1041 msointl.dll 16.0.4666.1000 2010344 14-Mar-18 03:29
msointl.dll.x86.1087 msointl.dll 16.0.4666.1000 2101480 14-Mar-18 03:29
msointl.dll.x86.1042 msointl.dll 16.0.4666.1000 2766568 14-Mar-18 03:29
msointl.dll.x86.1063 msointl.dll 16.0.4666.1000 1843432 14-Mar-18 03:29
msointl.dll.x86.1062 msointl.dll 16.0.4666.1000 1829608 14-Mar-18 03:29
msointl.dll.x86.1086 msointl.dll 16.0.4666.1000 1647336 14-Mar-18 03:29
msointl.dll.x86.1044 msointl.dll 16.0.4666.1000 1719008 14-Mar-18 03:29
msointl.dll.x86.1043 msointl.dll 16.0.4666.1000 1769184 14-Mar-18 03:29
msointl.dll.x86.1045 msointl.dll 16.0.4666.1000 1915112 14-Mar-18 03:29
msointl.dll.x86.1046 msointl.dll 16.0.4666.1000 1827048 14-Mar-18 03:29
msointl.dll.x86.2070 msointl.dll 16.0.4666.1000 1834208 14-Mar-18 03:29
msointl.dll.x86.1048 msointl.dll 16.0.4666.1000 1960672 14-Mar-18 03:29
msointl.dll.x86.1049 msointl.dll 16.0.4666.1000 1901800 14-Mar-18 03:29
msointl.dll.x86.1051 msointl.dll 16.0.4666.1000 1969384 14-Mar-18 03:29
msointl.dll.x86.1060 msointl.dll 16.0.4666.1000 1805544 14-Mar-18 03:29
msointl.dll.x86.2074 msointl.dll 16.0.4660.1000 1763560 14-Mar-18 03:29
msointl.dll.x86.9242 msointl.dll 16.0.4666.1000 1792744 14-Mar-18 03:29
msointl.dll.x86.1053 msointl.dll 16.0.4666.1000 1732328 14-Mar-18 03:29
msointl.dll.x86.1054 msointl.dll 16.0.4666.1000 1825000 14-Mar-18 03:29
msointl.dll.x86.1055 msointl.dll 16.0.4666.1000 1996512 14-Mar-18 03:29
msointl.dll.x86.1058 msointl.dll 16.0.4666.1000 1889512 14-Mar-18 03:29
msointl.dll.x86.1066 msointl.dll 16.0.4666.1000 2003176 14-Mar-18 03:29
msointl.dll.x86.2052 msointl.dll 16.0.4666.1000 2320048 14-Mar-18 03:29
msointl.dll.x86.1028 msointl.dll 16.0.4666.1000 2327216 14-Mar-18 03:29
conversion.office.msores.dll msores.dll 16.0.4666.1000 81680624 13-Mar-18 02:06
msores.dll msores.dll 16.0.4666.1000 81680624 13-Mar-18 02:06
ppt.conversion.msores.dll msores.dll 16.0.4666.1000 81680624    
ppt.edit.msores.dll msores.dll 16.0.4666.1000 81680624    
wac.office.msores.dll msores.dll 16.0.4666.1000 81680624    
msores.dll msores.dll 16.0.4666.1000 81680616 13-Mar-18 02:06
msores.dll.x86 msores.dll 16.0.4666.1000 81680616 13-Mar-18 02:12
mso.dll.x64 mso.dll 16.0.4678.1000 19826928 14-Mar-18 10:14
mso.dll.x86 mso.dll 16.0.4678.1000 14382832 14-Mar-18 10:12
msointl.dll.x64.1033 msointl.dll 16.0.4660.1000 1561832 13-Mar-18 02:06
msointl.dll.x86.1033 msointl.dll 16.0.4660.1000 1537256 13-Mar-18 02:06

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

Propose a feature or provide feedback on Office Core: Office User Voice portal