Recently, researchers at Qualys found a series of 21 vulnerabilities which they have nicknamed “21Nails”, TheRecord reports. These bugs impact Exim, which has a market share of nearly 60% among all Mail Transport Agent (MTA) solutions. The full list of bugs can be found on Qualys’ writeup, however, there are 11 vulnerabilities that require local access and 10 that can be exploited remotely. As previous Exim bugs have seen broad abuse from cybercrime and nation-state actors, researchers are urging users to patch with the utmost urgency.
By Anthony Zampino Introduction Leading up to the most recent Russian invasion of Ukraine in