CVE-2025-8286 Güralp Systems FMUS Series and MIN Series Devices

Critical 9.3 Published Updated

Unauthenticated Telnet access allows attackers to modify configurations, manipulate data, or factory reset Güralp seismic monitoring devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-8286?

CVE-2025-8286 is a critical missing authorization vulnerability in Güralp FMUS Series, published on 31 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-306

Which versions are affected by CVE-2025-8286?

How do I fix CVE-2025-8286?

No fix has been published for CVE-2025-8286 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-8286 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8286 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-5qv2-823h-cg9j.

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