IKTeam BearFTP avant 0.2.0 permet à des attaquants distants afin de parvenir à un déni de service via un grand volume de connexions au port PASV.
https://github.com/kolya5544/BearFTP/blob/0.2.0/CHANGELOG.txt
https://github.com/kolya5544/BearFTP/commit/9965337f9d4c0325e4aab324dcd485e4cbb7b428
https://github.com/kolya5544/BearFTP/releases/tag/0.2.0
http://packetstormsecurity.com/files/156170/BearFTP-0.1.0-Denial-Of-Service.html
https://pastebin.com/wqNWnCuN
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8416