From the Perspective of the New York Train Accident Attorneys at Gair, Gair, Conason, Rubinowitz, Bloom, Hershenhorn, Steigman & Mackauf
A critical vulnerability in U.S. railroad braking systems—one that could allow a hacker to remotely stop or even derail a train—was recently disclosed by federal authorities, raising serious concerns about passenger safety and operational integrity across the nation’s railroads.
According to a July 10 advisory issued by the Cybersecurity and Infrastructure Security Agency (CISA), the flaw—tracked as CVE-2025-1727—affects the radio-based communication protocols used in end-of-train and head-of-train devices. These devices are crucial to sending braking commands from the front to the rear of the train. The vulnerability stems from weak authentication within the protocol, which means a hacker with basic radio hardware could potentially broadcast fraudulent signals capable of halting a moving train.