TI-2025-01487 Aliases CVE-2025-1727 GHSA-q5w3-wqpr-96vw

End-of-Train and Head-of-Train Remote Linking Protocol Weak Authentication

LOW 35CWE-1390Published 2025-07-10 · Updated 2025-07-11

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00632 50th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
End-of-Train and Head-of-Train remote linking protocol	End-of-Train and Head-of-Train remote linking protocol	All versions	—	No fix listed	CNA

End-of-Train and Head-of-Train remote linking protocol VendorEnd-of-Train and Head-of-Train remote linking protocol Affected All versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-1727
2026-10-03 Alias added: GHSA-q5w3-wqpr-96vw
2026-10-25 EPSS moved to the 50th–90th percentile

References

Other 1

https://www.cisa.gov/news-events/ics-advisories/icsa-25-191-10

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences