Description


An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and master up to commit 76b95cf in the EtherNet/IP TCP SendRRData Common Packet Format parser. The issue occurs in CreateCommonPacketFormatStructure() when it parses recognized optional socket address information items of type 0x8000 or 0x8001 without first validating that the remaining CPF buffer contains the complete fixed sockaddr structure. This allows a remote attacker to cause a denial of service.

Related CPE's


Could not find any relations

Weaknesses


134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary

CWE-125

CVSS impact metrics


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

7.5 · High

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-09T16:17:29.730Z

2 hours ago

Last modified

2026-10-09T18:17:13.893Z

15 minutes ago