ABB, Phoenix Contact, Schneider Electric, Siemens, WAGO – Programmable Logic Controllers, multiple versions. Researchers have found some controllers are susceptible to a denial-of-service attack due to a flood of network packets.
Source: NIST
CVE-2019-10953 (6ed1052-1cc01-0ba8_firmware, 6es7211-1ae40-0xb0_firmware, 6es7314-6eh04-0ab0_firmware, bacnet/ip_firmware, ethernet_firmware, ilc_151_eth_firmware, knx_ip_firmware, modicon_m221_firmware, pfc100_firmware, pm554-tp-eth_firmware)