Security Updates for Microsoft Skype for Business (May 2021)

The Microsoft Skype for Business installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities: - A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. CVE-2021-26421 - A...

CVE-2021-26422

CVE-2021-26422 is a Remote Code Execution vulnerability affecting Microsoft Skype for Business Server and Lync Server. The Nessus plugin confirms exploitability and Microsoft MSRC update guidance ties the CVE-2021-26422 to the May 2021 security update KB5003729, addressing vulnerabilities in Skyp...

Description of the security update for Skype for Business Server and Lync Server: May 11, 2021 (KB5003729)

Description of the security update for Skype for Business Server and Lync Server: May 11, 2021 KB5003729 Summary This security update resolves vulnerabilities in Microsoft Skype for Business Server and Microsoft Lync Server. To learn more about these vulnerabilities, see Microsoft Common...