CVE-2020-5725 (ucm6202_firmware, ucm6204_firmware, ucm6208_firmware)

The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server’s websockify endpoint. A remote unauthenticated attacker can invoke the login action with a crafted username and, through the use of timing attacks, can discover user passwords.

Source: CVE-2020-5725 (ucm6202_firmware, ucm6204_firmware, ucm6208_firmware)