Multiple stack-based buffer overflows in Moxa VPort ActiveX SDK Plus before 2.8 allow remote attackers to insert assembly-code lines via vectors involving a regkey (1) set or (2) get command.

Moxa OnCell Gateway G3111, G3151, G3211, and G3251 devices with firmware before 1.4 do not use a sufficient source of entropy for SSH and SSL keys, which makes it easier for remote attackers to obtain access by leveraging knowledge of a key from a product installation elsewhere.

Moxa EDR-G903 series routers with firmware before 2.11 do not use a sufficient source of entropy for (1) SSH and (2) SSL keys, which makes it easier for man-in-the-middle attackers to spoof a device or modify a client-server data stream by leveraging knowledge of a key from a product installation elsewhere.

Moxa EDR-G903 series routers with firmware before 2.11 have a hardcoded account, which allows remote attackers to obtain unspecified device access via unknown vectors.

Stack-based buffer overflow in MDMUtil.dll in MDMTool.exe in MDM Tool before 2.3 in Moxa Device Manager allows remote MDM Gateways to execute arbitrary code via crafted data in a session on TCP port 54321.

Stack-based buffer overflow in a certain ActiveX control in MediaDBPlayback.DLL 2.2.0.5 in the Moxa ActiveX SDK allows remote attackers to execute arbitrary code via a long PlayFileName property value.