A vulnerability has been identified in RUGGEDCOM RMC30 (All versions < V4.3.10), RUGGEDCOM RMC30NC (All versions < V4.3.10), RUGGEDCOM RP110 (All versions < V4.3.10), RUGGEDCOM RP110NC (All versions < V4.3.10), RUGGEDCOM RS400 (All versions < V4.3.10), RUGGEDCOM RS400NC (All versions < V4.3.10), RUGGEDCOM RS401 (All versions < V4.3.10), RUGGEDCOM RS401NC (All versions < V4.3.10), RUGGEDCOM RS416 (All versions < V4.3.10), RUGGEDCOM RS416NC (All versions < V4.3.10), RUGGEDCOM RS416NCv2 V4.X (All versions < V4.3.10), RUGGEDCOM RS416NCv2 V5.X (All versions < V5.9.0), RUGGEDCOM RS416P (All versions < V4.3.10), RUGGEDCOM RS416PNC (All versions < V4.3.10), RUGGEDCOM RS416PNCv2 V4.X (All versions < V4.3.10), RUGGEDCOM RS416PNCv2 V5.X (All versions < V5.9.0), RUGGEDCOM RS416Pv2 V4.X (All versions < V4.3.10), RUGGEDCOM RS416Pv2 V5.X (All versions < V5.9.0), RUGGEDCOM RS416v2 V4.X (All versions < V4.3.10), RUGGEDCOM RS416v2 V5.X (All versions < V5.9.0), RUGGEDCOM RS910 (All versions < V4.3.10), RUGGEDCOM RS910L (All versions), RUGGEDCOM RS910LNC (All versions), RUGGEDCOM RS910NC (All versions < V4.3.10), RUGGEDCOM RS910W (All versions < V4.3.10), RUGGEDCOM RS920L (All versions), RUGGEDCOM RS920LNC (All versions), RUGGEDCOM RS920W (All versions). In some configurations the affected products wrongly enable the Modbus service in non-managed VLANS. Only serial devices are affected by this vulnerability.