A vulnerability has been identified in Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller (All versions), Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 (All versions), Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P (All versions), RUGGEDCOM RM1224 (All Versions < 6.4), SCALANCE M-800 (All Versions < 6.4), SCALANCE S615 (All Versions < 6.4), SCALANCE W1700 IEEE 802.11ac (All versions), SCALANCE W700 IEEE 802.11n (All versions), SCALANCE X200-4 P IRT (All Versions < V5.5.0), SCALANCE X201-3P IRT (All Versions < V5.5.0), SCALANCE X201-3P IRT PRO (All Versions < V5.5.0), SCALANCE X202-2 IRT (All Versions < V5.5.0), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All Versions < V5.5.0), SCALANCE X202-2P IRT PRO (All Versions < V5.5.0), SCALANCE X204 IRT (All Versions < V5.5.0), SCALANCE X204 IRT PRO (All Versions < V5.5.0), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions), SCALANCE X204-2FM (All versions), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions), SCALANCE X204-2LD TS (All versions), SCALANCE X204-2TS (All versions), SCALANCE X206-1 (All versions), SCALANCE X206-1LD (incl. SIPLUS NET variant) (All versions), SCALANCE X208 (incl. SIPLUS NET variant) (All versions), SCALANCE X208PRO (All versions), SCALANCE X212-2 (All versions), SCALANCE X212-2LD (All versions), SCALANCE X216 (All versions), SCALANCE X224 (All versions), SCALANCE X302-7EEC (All versions), SCALANCE X304-2FE (All versions), SCALANCE X306-1LDFE (All versions), SCALANCE X307-2EEC (All versions), SCALANCE X307-3 (All versions), SCALANCE X307-3LD (All versions), SCALANCE X308-2 (incl. SIPLUS NET variant) (All versions), SCALANCE X308-2LD (All versions), SCALANCE X308-2LH (All versions), SCALANCE X308-2LH+ (All versions), SCALANCE X308-2M (All versions), SCALANCE X308-2M POE (All versions), SCALANCE X308-2M TS (All versions), SCALANCE X310 (All versions), SCALANCE X310FE (All versions), SCALANCE X320-1FE (All versions), SCALANCE X320-3LDFE (All versions), SCALANCE XB-200 (All versions), SCALANCE XC-200 (All versions), SCALANCE XF-200BA (All versions), SCALANCE XF201-3P IRT (All Versions < V5.5.0), SCALANCE XF202-2P IRT (All Versions < V5.5.0), SCALANCE XF204 (All versions), SCALANCE XF204 IRT (All Versions < V5.5.0), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions), SCALANCE XF204-2BA IRT (All Versions < V5.5.0), SCALANCE XF206-1 (All versions), SCALANCE XF208 (All versions), SCALANCE XM400 (All versions < V6.3.1), SCALANCE XP-200 (All versions), SCALANCE XR-300WG (All versions), SCALANCE XR324-12M (All versions), SCALANCE XR324-12M TS (All versions), SCALANCE XR324-4M EEC (All versions), SCALANCE XR324-4M POE (All versions), SCALANCE XR324-4M POE TS (All versions), SCALANCE XR500 (All versions < V6.3.1), SIMATIC CFU PA (All versions), SIMATIC IE/PB-LINK V3 (All versions), SIMATIC MV500 family (All versions < V3.0), SIMATIC NET CM 1542-1 (All versions), SIMATIC NET CP1616/CP1604 (All Versions >= V2.7), SIMATIC NET CP1626 (All versions), SIMATIC NET DK-16xx PN IO (All Versions >= V2.7), SIMATIC PROFINET Driver (All versions), SIMATIC Power Line Booster PLB, Base Module (MLFB: 6ES7972-5AA10-0AB0) (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All Versions < V4.5), SIMOCODE proV Ethernet/IP (All versions < V1.1.3), SIMOCODE proV PROFINET (All versions < V2.1.3), SOFTNET-IE PNIO (All versions). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial-of-service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.