What is it?
Microsoft Exchange Server has a number of vulnerabilities that allow attackers to infect your computer (or use your comupter to attack others).
Why is it a risk?
Although each is slightly different, in general these vulnerabilities allow attackers to run unapproved code on your server. That code can damage your organizational data, interrupt network traffic and/or be used to attack other systems on the Internet.
How can you mitigate the risk?
Patch your Microsoft Exchange Server to the latest version.
There is a link below to the “One-Click Microsoft Exchange On-Premises Mitigation Tool”; as of March 2021, this is the recommended method for patching your on-premises MS Exchange Server.
The Microsoft Safety Scanner Download link below provides a useful tool for testing your Exchange Server for a variety of security related risks.
Resources:
Microsoft One-Click Microsoft Exchange On-Premises Mitigation Tool
Microsoft Safety Scanner Download
