CISA has issued a high‑severity industrial control systems (ICS) advisory describing an unauthenticated Telnet command‑line interface in Güralp Systems seismic monitoring devices that can be remotely accessed with no credentials, enabling attackers to modify hardware settings, manipulate seismic...
Here is a summary of the CISA ICS advisory ICSA-25-212-01 for the Güralp FMUS Series Seismic Monitoring Devices, published on July 31, 2025:
1. Executive Summary
CVSS v4 Score: 9.3 (Critical)
Vendor: Güralp Systems
Equipment: Güralp FMUS Series Seismic Monitoring Devices (All versions)...
For organizations safeguarding the integrity of seismic monitoring, the Güralp FMUS Series has historically stood as a trusted solution—a set of devices entrenched worldwide in critical infrastructure and research networks. Yet, recent revelations about a critical security flaw in all versions...