Description: The Java RMI (Remote Method Invocation) vulnerability refers to a weakness in the remote method invocation system that allows an attacker to execute code remotely on a vulnerable server. This vulnerability originates from how Java handles object serialization and method invocation over the network. When an object is sent via RMI, it can be manipulated by an attacker to execute malicious code on the server. This can result in unauthorized command execution, access to sensitive data, or even complete control of the affected system. The nature of RMI allows methods of an object on a server to be invoked as if they were local, facilitating interaction between distributed applications. However, if security measures such as input validation and restriction of serializable classes are not properly implemented, it opens the door to attacks that can compromise the integrity and confidentiality of systems. The RMI vulnerability serves as a reminder of the importance of security in programming and the need to apply secure coding practices to protect applications from potential external threats.