A CWE-319: Cleartext transmission of sensitive information vulnerability exists in PowerLogic ION7400, ION7650, ION7700/73xx, ION83xx/84xx/85xx/8600, ION8650, ION8800, ION9000 and PM800 (see notification for affected versions), that could cause disclosure of user credentials when a malicious actor intercepts Telnet network traffic between a user and the device.
https://www.se.com/ww/en/download/document/SEVD-2021-040-01/