In Moxa ioLogik 2500 series firmware, Version 3.0 or lower, and IOxpress configuration utility, Version 2.3.0 or lower, sensitive information is transmitted over some web applications in clear text.

In Moxa ioLogik 2500 series firmware, Version 3.0 or lower, and IOxpress configuration utility, Version 2.3.0 or lower, frequent and multiple requests for short-term use may cause the web server to fail.

In Moxa ioLogik 2500 series firmware, Version 3.0 or lower, and IOxpress configuration utility, Version 2.3.0 or lower, sensitive information is stored in configuration files without encryption, which may allow an attacker to access an administrative account.