Serial-to-Ethernet converters, widely used in critical infrastructure sectors such as industrial, retail, and healthcare, are plagued by numerous vulnerabilities and outdated open-source components, making them an attractive target for attackers. These flaws can be exploited to gain full control of essential equipment, including remote terminal units, programmable logic controllers, and patient monitors. A recent study, BRIDGE:BREAK, conducted by Forescout researchers, analyzed the firmware of five major vendors and uncovered these significant security weaknesses. The vulnerabilities enable various attack scenarios, allowing threat actors to compromise mission-critical systems. This is particularly concerning given the rise of state-aligned threat activity, which elevates the stakes from mere criminal activity to geopolitical implications1. So what matters to practitioners is that these vulnerabilities can have far-reaching consequences, extending beyond the immediate target and potentially disrupting entire industries and ecosystems.