A vulnerability has been identified in SENTRON 7KM PAC3120 AC/DC (7KM3120-0BA01-1DA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3120 DC (7KM3120-1BA01-1EA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3220 AC/DC (7KM3220-0BA01-1DA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)), SENTRON 7KM PAC3220 DC (7KM3220-1BA01-1EA0) (All versions >= V3.2.3 < V3.2.4 only when manufactured between LQN231003... and LQN231215... ( with LQNYYMMDD...)). The read out protection of the internal flash of affected devices was not properly set at the end of the manufa