VulnerabilityDeferred

CVE-2025-1727

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.

HIGH 7.2EPSS 0.63%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 4.0: 7.2 HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.63% probability · 48th percentile
CISA KEV: Not listed
Weakness: CWE-1390
Source: ics-cert@hq.dhs.gov

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.