exchange server 2013 cumulative update 24

How can I get an inventory of the update-level status of my on-premises Exchange servers? If your servers are running older Exchange Server cumulative or rollup update, you will need to install a currently supported RU/CU before you can install the security updates. These fixes can be installed only on servers that are running the specific versions listed previously, which are considered up to date. Microsoft shipped Security Update (SU) fixes.Exchange Server 2019 (update requires CU 8 or CU 7)ĭoes installing the March Security Updates require my servers to be up to date?.Exchange Server 2016 (update requires CU 19 or CU 18).Exchange Server 2013 (update requires CU 23).

Exchange Server 2010 (update requires Service Pack 3 – this is a Defense in Depth update).Security updates are available for the following specific versions of Exchange: All affected Exchange Servers should ultimately be updated. Microsoft recommends prioritizing installing updates on Exchange Servers that are externally facing. Using this mitigation will only protect against the initial portion of the attack other portions of the chain can be triggered if an attacker already has access or can convince an administrator to run a malicious file. This can be protected against by restricting untrusted connections, or by setting up a VPN to separate the Exchange server from external access. The initial attack requires the ability to make an untrusted connection to Exchange server port 443. These vulnerabilities are used as part of an attack chain.

Microsoft Exchange Server 2010 is being updated for Defense in Depth purposes. Due to the critical nature of these vulnerabilities, Microsoft recommends that clients apply the updates to affected systems immediately to protect against these exploits and to prevent future abuse across the ecosystem. This week, Microsoft released multiple out of band security patches for Microsoft Exchange Server to address vulnerabilities that have been used in limited targeted attacks. Reference: Microsoft Security Response Center

Exchange server 2013 cumulative update 24