CVE-2025-23091 Security feature bypass in EFG

Medium 5.9 Published Updated

Attackers can perform man-in-the-middle attacks during updates on UniFi OS devices with Identity Enterprise, potentially executing malicious code.

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-2025-23091?

CVE-2025-23091 is a medium-severity vulnerability in Ubiquiti Inc EFG, published on 1 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Improper Certificate Validation on UniFi OS devices, with Identity Enterprise configured, could allow a malicious actor to execute a man-in-the-middle (MitM) attack during application update.

Weakness: CWE-295

Which versions are affected by CVE-2025-23091?

How do I fix CVE-2025-23091?

No fix has been published for CVE-2025-23091 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-23091 being exploited?

There is no known exploitation of CVE-2025-23091 in the wild and no public exploit code.

Sources

Also known as GHSA-j57h-g9hv-4p44.

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