CVE-2018-4878 was the second most commonly observed vulnerability and is the only Adobe Flash Player vulnerability on this year’s top 10. Like CVE-2018-8174, this vulnerability was included in multiple exploit kits, most notably the Fallout exploit kit, which was used to distribute GandCrab ransomware. Fallout took its name and URI patterns from the now defunct Nuclear exploit kit, which had been associated with CVE-2015-7645, one of 2016’s top 10 vulnerabilities. In 2018, Fallout was last selling for $300 a week and $1,100 a month, as seen below.