CVE-2026-75349: High severity EIPStackGroup OpENer vulnerability

Published Oct 9, 2026

Updated

EIPStackGroup OpENer v2.3.0/master up to commit 76b95cf contains an out-of-bounds read vulnerability in Connection Manager request parsing. This allows a remote attacker to cause a denial of service.

Affected Software

1 affected component

EIPStackGroup OpENer=v2.3.0/master

Event History

Oct 9, 2026

CVE Published

via MITRE·12:00 AM

Data Sourced

via MITRE·12:00 AM

DescriptionSeverity

Frequently Asked Questions

What access does an attacker need to exploit this issue?

The issue can be exploited remotely over the network without authentication or user interaction. Successful exploitation can cause a denial of service.

Which code should be reviewed to determine exposure?

The vulnerability is in Connection Manager request parsing. The referenced source location is source/src/cip/cipmessagerouter.c, and affected code includes OpENer v2.3.0/master through commit 76b95cf.

Company

Resources

Contact

SecAlerts Pty Ltd.
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Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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