The installation procedure in BigBlueButton before 2.2.28 (or earlier) uses ClueCon as the FreeSWITCH password, which allows local users to achieve unintended FreeSWITCH access.
{ "versions": [ { "introduced": "0" }, { "fixed": "2.2.28" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27613.json"