A vulnerability has been identified in SIMATIC Drive Controller family (All versions > V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions > V21.9 < V21.9.4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions > V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions > V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions > V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packets over port 102/tcp. A restart of the affected device is needed to restore normal operations.
Publication date: Wed, 09 Feb 2022 22:15:00 +0000