Ubiquiti U6-LR 6.6.65 was discovered to contain a hardcoded password vulnerability in /etc/shadow, which allows attackers to log in as root. NOTE: In Ubiquiti's view there is no vulnerability as the Hardcoded Password should be after setup not before.
https://colorful-meadow-5b9.notion.site/U6-LR_HardCode_vuln-14bc216a1c30806487ebdda3bb984e91?pvs=4