Typical severity: Very High. Likelihood of attack: High. This attack targets programs running with elevated privileges. The adversary tries to leverage a vulnerability in the running program and get arbitrary code to execute with elevated privileges.
Apply the principle of least privilege. | Validate all untrusted data. | Apply the latest patches. | Scan your services and disable the ones which are not needed and are exposed unnecessarily. Exposing programs increases the attack surface. Only expose the services which are needed and have security mechanisms such as authentication built around them. | Avoid revealing information about your system (e.g., version of the program) to anonymous users.