A Blind SQL injection vulnerability exists in the /DataHandler/Handler_CFG.ashx endpoint of Delta Electronics DIAEnergie Version 1.7.5 and prior. The application does not properly validate the user-controlled value supplied through the parameter keyword before using it as part of an SQL query. A remote, unauthenticated attacker can exploit this issue to execute arbitrary code in the context of NT SERVICE\MSSQLSERVER.

Delta Electronics DIAEnergie Version 1.7.5 and prior may allow an attacker to add a new administrative user without being authenticated or authorized, which may allow the attacker to log in and use the device with administrative privileges.

Delta Electronics DIAEnergie Version 1.7.5 and prior allows unrestricted file uploads, which may allow an attacker to remotely execute code.