This cumulative update fixes the following issues: A denial of service vulnerability in Microsoft Skype for Business Server. A spoofing vulnerability in Microsoft Skype for Business Server. The cumulative update also fixes the issues that were previously described in the following Microsoft Knowledge Base articles:

How to install the update. To install this cumulative update for Skype for Business Server 2015 (Web Components Server), follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064).

How to install the update. To install this cumulative update for Skype for Business Server 2015 (Web Components Server), follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064).

The cumulative update fixes the following issues: KB 4036618 Meeting URLs are visible in search results of a search engine in Skype for Business Server 2015. KB 4036619 Lync or Skype for Business client can’t be started to join meeting if default browser is Firefox 52 or a later version.

How to install the update. To install this cumulative update for Skype for Business Server 2015 (Web Components Server), follow the steps that are described in Updates for Skype for Business Server 2015 (KB3061064). Note The Cumulative Server Update Installer applies all updates for the appropriate server role in one operation. Prerequisites.

The cumulative update fixes the following issues: KB 4056283 Can't join a Skype meeting with Skype for Business on Mac. KB 4056284 Skype for Business Web App can't switch audio for a guest user in a meeting with CU5 applied.

This cumulative update fixes the following issues: 5030764 Emergency Mitigation Service for Skype for Business Server. The cumulative update also fixes the issues that were previously described in the following Microsoft Knowledge Base articles:

To apply this cumulative update, you must follow the steps that are described in Updates for Skype for Business Server 2019 on computers that are running the following server roles: Skype for Business Server 2019, Standard Edition server. Skype for Business Server 2019, Enterprise Edition - Front End server and Back End server.

Update replacement information. This cumulative update replaces the June 2023 cumulative update 7.0.2046.521 for Skype for Business Server 2019, Web Components Server.

This cumulative update fixes several issues in Microsoft Skype for Business Server 2015 (Web Components Server). The version number of this update is 6.0.9319.88.