CVE-2026-51221

HIGH

EIPStackGroup OpENer - Denial of Service via Crafted CPF Packet

Title source: llm

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.

References (2)

Core 2

Core References

https://github.com/EIPStackGroup/OpENer

View Writeup ZIP pw:eip

https://github.com/EIPStackGroup/OpENer/issues/567

Scores

CVSS v3 7.5

EPSS 0.0035

EPSS Percentile 27.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-284

Status published

Published Jun 29, 2026

Tracked Since Jun 30, 2026