Important Security Alert for Microsoft Exchange Server Users
At the beginning of March, Microsoft announced a new threat targeting Microsoft Exchange server users. The vulnerabilities exist in on-premises Exchange Server 2010, 2013, 2016, and 2019. Exchange Online is not affected.
Microsoft has released patches to address four vulnerabilities in Exchange Server that are being used in these targeted attacks.
They are urging customers to take immediate action to apply the patches as soon as possible due to the critical rating of the flaws.