Buffer Overflow in OpENer Stack Group

Publication date: 2026-06-29

Last updated on: 2026-06-29

Assigner: MITRE

Description

A buffer overflow in the Get_Attribute_List function of EIPStackGroup OpENer commit 76b95c allows attackers to cause a Denial of Service (DoS) via supplying a crafted Common Packet Format (CPF) packet.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-29

Last Modified

2026-06-29

Generated

2026-06-30

AI Q&A

2026-06-30

EPSS Evaluated

N/A

NVD

CVE-2026-51221

Affected Vendors & Products

Vendor	Product	Version / Range
eipstackgroup	opener	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a buffer overflow in the Get_Attribute_List function of the EIPStackGroup OpENer software. It occurs when an attacker sends a specially crafted Common Packet Format (CPF) packet, which causes the software to overflow its buffer.

A buffer overflow happens when more data is written to a buffer than it can hold, potentially leading to unexpected behavior or crashes.

Impact Analysis

This vulnerability can be exploited by attackers to cause a Denial of Service (DoS) condition. This means the affected system or service may crash or become unavailable, disrupting normal operations.

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