MaLion for Windows and Mac 5.0.0 to 5.2.1 allows remote attackers to bypass authentication to alter settings in Relay Service Server.

MaLion for Windows and Mac versions 3.2.1 to 5.2.1 uses a hardcoded cryptographic key which may allow an attacker to alter the connection settings of Terminal Agent and spoof the Relay Service.

MaLion for Mac 4.3.0 to 5.2.1 does not properly validate certificates, which may allow an attacker to eavesdrop on an encrypted communication.

MaLion for Windows 5.2.1 and earlier (only when "Remote Control" is installed) and MaLion for Mac 4.0.1 to 5.2.1 (only when "Remote Control" is installed) allow remote attackers to bypass authentication to execute arbitrary commands or operations on Terminal Agent.

SQL injection vulnerability in the MaLion for Windows and Mac 5.0.0 to 5.2.1 allows remote attackers to execute arbitrary SQL commands via Relay Service Server.