microsoft / Microsoft Exchange Server 2016 Cumulative Update 13

4 vulnerabilities across affected versions.

CVE-2021-26855CRITICAL9.115.01.0 – 15.01.1779.008

CVE-2021-26857HIGH7.815.01.0 – 15.01.1779.008

CVE-2021-26858HIGH7.815.01.0 – 15.01.1779.008

CVE-2021-27065HIGH7.815.01.0 – 15.01.1779.008