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Güralp Systems Güralp FMUS series

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1. EXECUTIVE SUMMARY

  • CVSS v4 9.3
  • ATTENTION: Exploitable remotely/Low attack complexity
  • Vendor: Güralp Systems
  • Equipment: Güralp FMUS Series Seismic Monitoring Devices
  • Vulnerability: Missing Authentication for Critical Function

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to modify hardware configurations, manipulate data, or factory reset the device.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Güralp FMUS series are affected:

  • Güralp FMUS Series Seismic Monitoring Devices: All versions

3.2 Vulnerability Overview

3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The affected products expose an unauthenticated Telnet-based command line interface that could allow an attacker to modify hardware configurations, manipulate data, or factory reset the device.

CVE-2025-8286 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2025-8286. A base score of 9.3 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Uni

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