A stack-based buffer overflow in the built-in web server in Moxa NPort W2150A/W2250A Series firmware version 2.3 and prior allows a remote attacker to exploit the vulnerability by sending crafted payload to the web service. Successful exploitation of the vulnerability could result in denial of service.

A Credentials Management issue was discovered in Moxa NPort W2150A versions prior to 1.11, and NPort W2250A versions prior to 1.11. The default password is empty on the device. An unauthorized user can access the device without a password. An unauthorized user has the ability to completely compromise the confidentiality and integrity of the wireless traffic.