CVE-2026-27873 Hardcoded credentials in EasyIO FG

Medium 5.6 Published Updated

Attackers can exploit hard-coded credentials in Johnson Controls EasyIO FG to perform password spraying and gain unauthorized access.

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

What is CVE-2026-27873?

CVE-2026-27873 is a medium-severity vulnerability in Johnson Controls EasyIO FG, published on 1 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

- Use of Hard-coded Credentials vulnerability in Johnson Controls EasyIO FG allows - Pasword Spraying.

This issue affects EasyIO FG: before 2.0b52.

Weakness: CWE-798

Which versions are affected by CVE-2026-27873?

How do I fix CVE-2026-27873?

No fix has been published for CVE-2026-27873 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-27873 being exploited?

There is no known exploitation of CVE-2026-27873 in the wild and no public exploit code.

Sources

Also known as GHSA-q85m-fcq2-qmgf.

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