CVE-2025-27256 Auth bypass in EnerVista UR Setup

High 8.3 Published Updated

Missing SSH authentication in GE Vernova Enervista UR Setup allows attackers to perform man-in-the-middle attacks on the network.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-27256?

CVE-2025-27256 is a high-severity authentication bypass vulnerability in GE Vernova EnerVista UR Setup, published on 10 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Missing Authentication for Critical Function vulnerability in GE Vernova Enervista UR Setup application allows Authentication Bypass due to a missing SSH server authentication. Since the client connection is not authenticated, an attacker may perform a man-in-the-middle attack on the network.

Weakness: CWE-306

Which versions are affected by CVE-2025-27256?

How do I fix CVE-2025-27256?

No fix has been published for CVE-2025-27256 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-27256 being exploited?

There is no known exploitation of CVE-2025-27256 in the wild and no public exploit code.

Sources

Also known as GHSA-gjhg-f944-56m2.

Is CVE-2025-27256 in your software?

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