New RCE vulnerability impacts nearly half of the internet's email servers | WHAT REALLY HAPPENED


New RCE vulnerability impacts nearly half of the internet's email servers

A critical remote command execution (RCE) security flaw impacts over half of the Internet's email servers, security researchers from Qualys have revealed today.

The vulnerability affects Exim, a mail transfer agent (MTA), which is software that runs on email servers to relay emails from senders to recipients.

According to a June 2019 survey of all mail servers visible on the Internet, 57% (507,389) of all email servers run Exim -- although different reports would put the number of Exim installations at ten times that number, at 5.4 million.

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