A security firm uncovered a number of critical vulnerabilities, including hardcoded credentials, undocumented and insecure protocols, and backdoors in the widely used satellite communications (SATCOM) terminals. Thousands of SATCOM devices found to be vulnerable and even if one of the affected devices compromised, the entire SATCOM infrastructure could be at risk. Vulnerability also affect the US military aircraft equipped with the Cobham AVIATO, which is designed to meet the satellite communications needs of aircraft and a malicious attacker could disrupt flight communication.
Source: https://thehackernews.com/2014/04/satellite-communication-satcom-devices.html