Security update: Skype for Business for Crestron RL, Polycom CX8000, and SMART Room System (KB4023573)

Applies to: Skype for Business 2015Lync 2013

Security Update 15.15.9 for Microsoft Skype for Business has been released to resolve vulnerabilities in Windows 7 that is running on Crestron RL, Polycom CX8000, and SMART Room System devices. Administrators managing these devices are strongly recommended to apply the 15.15.9 as soon as possible to ensure the integrity of these systems.

This security update includes Security Update 15.15.8.

Get the update


Use the steps in the "How to install this update" section in Security Update 15.15.8 (KB3215022) for instructions on installing Security Update 15.15.9.