CVE-2018-25112 PHOENIX CONTACT: ILC 1x1 ETH Denial of Service

High 7.5 Published Updated

Unauthenticated remote attackers can cause denial of service in PHOENIX CONTACT ILC devices by generating excessive network traffic.

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-2018-25112?

CVE-2018-25112 is a high-severity denial of service vulnerability in PHOENIX CONTACT ILC 131, published on 4 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unauthenticated remote attacker may use an uncontrolled resource consumption in the IEC 61131 program of the affected products by creating large amounts of network traffic that needs to be handled by the ILC. This results in a Denial-of-Service of the device.

Weakness: CWE-770

Which versions are affected by CVE-2018-25112?

How do I fix CVE-2018-25112?

No fix has been published for CVE-2018-25112 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-25112 being exploited?

There is no known exploitation of CVE-2018-25112 in the wild and no public exploit code.

Sources

Also known as GHSA-v8fm-gcgr-rhrg.

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