A vulnerability has been identified in TIA Portal V14 (All versions), TIA Portal V15 (All versions < V15.1 Upd 4), TIA Portal V16 (All versions). Changing the contents of a configuration file could allow an attacker to execute arbitrary code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system. No user interaction is required. At the time of advisory publication no public exploitation of this security vulnerability was known.