Serial-to-IP converters are affected by potentially serious vulnerabilities that can expose operational technology (OT), healthcare, and other types of systems to remote attacks. Serial-to-IP converters, also known as serial device servers, are hardware devices that bridge legacy serial equipment to modern Ethernet/IP networks, allowing old industrial control systems (ICS) and other OT devices to communicate remotely. Researchers at network security and threat detection company Forescout Technologies have analyzed these devices and found numerous vulnerabilities that could be valuable to threat actors. Serial-to-IP converters are used in sectors such as industrial, telecoms, retail, healthcare, energy and utilities, and transportation. The devices are made by several major companies,…