Security Flaw in Güralp FMUS Seismic Monitoring Devices Exposes Telnet Interface
CVE-2025-8286

9.3CRITICAL

Key Information:

Vendor

Güralp Systems

Status
Güralp Fmus Series
Min Series Devices
Vendor
CVE Published:
31 July 2025

What is CVE-2025-8286?

The Güralp FMUS series seismic monitoring devices have a significant vulnerability due to an unauthenticated Telnet-based command line interface. This flaw allows unauthorized individuals to gain access to the devices, leading to potential risks such as unauthorized modification of hardware configurations, manipulation of critical data, and even the ability to factory reset the devices. Such exposure presents serious security challenges for users relying on these monitoring systems.

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Affected Version(s)

Güralp FMUS Series All versions

MIN Series Devices All versions

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-2...

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Souvik Kandar of MicroSec (microsec.io) reported this vulnerability to CISA.
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