---
id: CVE-2026-75346
title: >-
  An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and
  master through commit 76b95cf in the server-side CIP SetAttributeList service
summary: >-
  An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and
  master through commit 76b95cf in the server-side CIP SetAttributeList service.
  This allows a remote attacker to cause a denial of service
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T21:17:05.800'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75346'
references:
  - url: 'https://github.com/EIPStackGroup/OpENer'
    label: cve@mitre.org
  - url: >-
      https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/cipcommon.c
    label: cve@mitre.org
  - url: >-
      https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/cipidentity.c
    label: cve@mitre.org
  - url: >-
      https://github.com/EIPStackGroup/OpENer/blob/master/source/src/cip/ciptypes.c
    label: cve@mitre.org
  - url: >-
      https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/endianconv.c
    label: cve@mitre.org
  - url: 'https://github.com/EIPStackGroup/OpENer/issues/572'
    label: cve@mitre.org
  - url: 'https://github.com/EIPStackGroup/OpENer/issues/572'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75346.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-75346'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-75346'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - exploit-available
ingestedAt: '2026-10-09T17:04:42.812Z'
vendor: Red Hat
epss: 0.00542
epssPercentile: 0.45367
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-09T20:41:07.610073Z'
---

## Overview

An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and master through commit 76b95cf in the server-side CIP SetAttributeList service. This allows a remote attacker to cause a denial of service

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75346.json)