SolarWinds Serv-U FTP server before 15.2.1 mishandles the CHMOD command.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15542
Reference (s):
- https://documentation.solarwinds.com/en/success_center/servu/Content/Release_Notes/Servu_15-2-1_release_notes.htm

