CVE-2026-75350 Denial of service in n/a

High 7.5 Published Updated

A buffer overflow in the GetAttributeList function allows remote attackers to cause a denial of service in OpENer EtherNet/IP implementations.

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-2026-75350?

CVE-2026-75350 is a high-severity denial of service vulnerability in n/a, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

EIPStackGroup OpENer v2.3 / master commit 76b95cf contains a buffer overflow in the GetAttributeList() implementation for the EtherNet/IP Get_Attribute_List service. This allows a remote attacker to cause a denial of service

Weakness: CWE-400

Which versions are affected by CVE-2026-75350?

How do I fix CVE-2026-75350?

No fix has been published for CVE-2026-75350 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-2026-75350 being exploited?

There is no known exploitation of CVE-2026-75350 in the wild and no public exploit code.

Sources

Also known as GHSA-p3x9-82v4-vwmr.

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