Which of the following can be used to compromise a system that is running an RTOS?

Memory injection, also known as memory corruption or buffer overflow, is a common vulnerability in embedded systems and Real-Time Operating Systems (RTOS). It involves injecting malicious code or data into a program's memory space, which can lead to arbitrary code execution, denial of service, or privilege escalation. RTOS environments often have limited memory protection and rely on efficient, low-level code, making them susceptible to these types of attacks. Cross-site scripting (XSS) is a web-based vulnerability and is not directly applicable to an RTOS, which typically lacks a web interface. A replay attack involves retransmitting valid data transmissions, which might affect an RTOS if it lacks proper session management or unique transaction identifiers, but it's less about compromising the system's core functionality than memory injection. Ransomware is a type of malware that encrypts data and demands a ransom; while an RTOS could theoretically be a target, memory injection is a more direct and fundamental method of compromising the system itself.