Vulnerability · Published Jul 10, 2025 · Assigned by icscert
CVE-2025-1727End-of-Train and Head-of-Train Remote Linking Protocol Weak Authentication
High 8.1
In plain English
A high-severity security flaw in End-of-Train and Head-of-Train remote linking protocol from End-of-Train and Head-of-Train remote linking protocol. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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 operations or potentially overwhelming the brake systems.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| End-of-Train and Head-of-Train remote linking protocol | End-of-Train and Head-of-Train remote linking protocol | All versions |
Weakness: CWE-1390 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H