CVE-2025-8286: Güralp Systems Güralp Fmus Series

Critical severity, CVSS 9.3. EPSS: 1.3% chance of exploitation in the next 30 days.

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.

Affected products

• Güralp Systems Güralp Fmus Series: any version
• Güralp Systems Min Series Devices: any version

Published 2025-07-31. Last modified 2026-06-17.