Siemens Mobility Trainguard End-of-Train and Head-of-Train Weak Authentication Vulnerability

The Trainguard End-of-Train EOT is a new generation of end-of-train devices for connecting on-board telemetry.The Trainguard Head-of-Train HOT is a front-of-train device. These devices communicate using the S-9152 standard. A weak authentication vulnerability exists in Siemens Mobility Trainguard...

The vulnerability of the BCH Handler component in the End-of-Train and Head-of-Train protocols allows a attacker to trigger a service failure.

The vulnerability of the BCH Handler component in the End-of-Train and Head-of-Train protocols relates to the bypassing of authentication processes. Exploiting this vulnerability can allow a malicious actor to cause service failures...

Hacking Trains

Seems like an old system system that predates any care about security: The flaw has to do with the protocol used in a train system known as the End-of-Train and Head-of-Train. A Flashing Rear End Device FRED, also known as an End-of-Train EOT device, is attached to the back of a train and sends...

CVE-2025-1727 End-of-Train and Head-of-Train Remote Linking Protocol Weak Authentication

The protocol used for remote linking over RF for End-of-Train and Head-of-Train also known as a FRED relies on a BCH checksum for packet creation. It is possible to create these EoT and HoT packets with a software defined radio and issue brake control commands to the EoT device, disrupting...

PT-2025-29125

Name of the Vulnerable Software and Affected Versions End-of-Train EoT and Head-of-Train HoT devices affected versions not specified Description A critical vulnerability exists in the remote linking protocol used for End-of-Train EoT and Head-of-Train HoT devices, which rely on a BCH checksum for...