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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/EIPStackGroup/OpENer cve-icon cve-icon
https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipconnectionmanager.c cve-icon cve-icon
https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/cip/cipmessagerouter.c cve-icon cve-icon
https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/cpf.c cve-icon cve-icon
https://github.com/EIPStackGroup/OpENer/blob/76b95cf/source/src/enet_encap/encap.c cve-icon cve-icon
https://github.com/EIPStackGroup/OpENer/issues/577 cve-icon cve-icon
History

Fri, 09 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Title Out‑of‑Bounds Read in OpENer Connection Manager Leading to Denial of Service
Weaknesses CWE-179

Fri, 09 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Eipstackgroup
Eipstackgroup opener
Vendors & Products Eipstackgroup
Eipstackgroup opener

Fri, 09 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description 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.
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-09T15:40:54.562Z

Reserved: 2026-08-17T00:00:00.000Z

Link: CVE-2026-75349

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-09T16:17:29.877

Modified: 2026-10-09T16:40:29.800

Link: CVE-2026-75349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T18:45:10Z

Weaknesses