Is CVE-2026-75345 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-75345 being exploited in the wild.

How severe is CVE-2026-75345?

High severity, with a CVSS score of 7.5, published 9 October 2026.

Which products and versions are affected?

EIPStackGroup OpENer v2.3.0 (commit 76b95cf).

Is there a fix for CVE-2026-75345?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-75345 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-75345?

Check whether you run EIPStackGroup OpENer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-75345: OpENer out-of-bounds read in unconnected explicit messaging

CVE-2026-75345 · Severity: high · CVSS 7.5 · Published 2026-10-09

OpENer is an open-source implementation of the EtherNet/IP protocol, which is used in industrial control systems and factory automation. An out-of-bounds memory read vulnerability in the unconnected explicit messaging path allows a remote attacker to crash the service, causing a denial of service to industrial equipment that depends on OpENer for communication.

Technologies: EIPStackGroup OpENer. Vendors: EIPStackGroup.

Quick answers

Is CVE-2026-75345 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-75345 being exploited in the wild.
How severe is CVE-2026-75345?: High severity, with a CVSS score of 7.5, published 9 October 2026.
Which products and versions are affected?: EIPStackGroup OpENer v2.3.0 (commit 76b95cf).
Is there a fix for CVE-2026-75345?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-75345 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-75345?: Check whether you run EIPStackGroup OpENer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an out-of-bounds read flaw in the unconnected explicit messaging code path of OpENer v2.3.0 (commit 76b95cf). A remote attacker can send a specially crafted EtherNet/IP message to trigger the read, resulting in a denial of service condition. No authentication or user interaction is required.

Affected products

EIPStackGroup OpENer v2.3.0 (commit 76b95cf)

Timeline

2026-10-09: disclosed

References

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