Description of the security update for Skype for Business 2015 (Lync 2013): June 13, 2017

Applies to: Microsoft Lync 2013Skype for Business


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-2017-0283.

Note To apply this security update, you must have the release version of Skype for Business 2015 (Lync 2013) installed on the computer.

How to get and install the update

Method 1: Microsoft Update

Method 2: Microsoft Update Catalog

Method 3: Microsoft Download Center

More Information

Security update deployment information

For deployment information about this update, see security update deployment information: June 13, 2017.

Security update replacement information

This security update replaces previously released security update KB3118348.


File hash information

Package Name Package Hash SHA 1 Package Hash SHA 2
lync2013-kb3191939-fullfile-x86-glb.exe 275C960248504A092C38CD997DF919C76C579B25 DFD2E86F5818576FC23165E07352283776D7F64DE2A592FF5DDA814B32F620D7
lync2013-kb3191939-fullfile-x64-glb.exe 3D4E80FDB7FDA8AD5900D5147FBDC184AE8CFA49 E87ED36EC88322F20B86441EE20F752DF469EF2AF331BB0DC81175577CBA7239

File information

How to get help and support for this security update

Help for installing updates: Windows Update FAQ

Security solutions for IT professionals:
TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware:
Microsoft Secure

Local support according to your country:
International Support

Propose a feature or provide feedback on Skype: Skype User Voice portal