CVE-2019-12327
Hardcoded credentials in the Akuvox R50P VoIP phone 50.0.6.156 allow an attacker to get access to the device via telnet. The telnet service is running on port 2323; it cannot be turned off and the credentials cannot be changed.
Date published : 2019-07-22
https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_Akuvox_R50P.pdf