Another EXIM Vulnerability (CVE-2019-15846)

[dsystem]

According to the official Exim website, a critical vulnerability was found in versions of this MTA including 4.92.1, which can provide hackers with unlimited access to the server.

More information: https://exim.org/static/doc/security/CVE-2019-15846.txt

[sysdop]

You just have to keep it updated by command line and you shouldn't worry.

if you use CentOS try run yum update.