Microsoft has released security patches to address four new remote code vulnerabilities in Exchange 2013,2016, and 2019. At the same time, the FBI has removed web shells from compromised servers
Microsoft has published security bulletin MS16-108, which includes critical security updates for all currently supported versions of Exchange Server.
Microsoft has released an important security update for Exchange Server 2013 Service Pack 1 and Cumulative Update 8 servers.
Microsoft has released new updates for Exchange Server 2013, 2010 and 2007 that includes important security updates and bug fixes.