Upgrade Exim IMMEDIATELY! - Exploit affecting ALL versions.


Active Member
On Tuesday, March 6, 2018, a vulnerability in all versions of the Exim software was announced. According to the team that discovered the vulnerability: “We reported an overflow vulnerability in the base64 decode function of Exim on 5 February, 2018, identified as CVE-2018-6789. This bug exists since the first commit of exim, hence ALL versions are affected. According to our research, it can be leveraged to gain Pre-auth Remote Code Execution and at least 400k servers are at risk. Patched version 4.90.1 is already released and we suggest to upgrade exim immediately.”

For more information please refer to the documentation here: