Description of the security update for Skype for Business Server and Lync Server: February 9, 2021 (KB5000675)

Summary

This security update resolves a denial of service vulnerability in Microsoft Skype for Business Server and Microsoft Lync Server. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2021-24099.NoteTo apply this security update, you must have the release version of the following products installed:

• Microsoft Skype for Business Server 2019 CU2
• Microsoft Skype for Business Server 2015 CU 8
• Microsoft Lync Server 2013

How to get and install the update

To get this update, install the following updates:

• Update for Skype for Business Server 2019
• Update for Skype for Business Server 2015
• Update for Lync Server 2013

More information

Security update deployment information

For deployment information about this update, see security update deployment information: February 9, 2021.

How to get help and support for this security update

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