OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that is not consistently validated against the remaining data_length of the CPF slice
History

Tue, 19 May 2026 08:45:00 +0000

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

Mon, 18 May 2026 21:15:00 +0000

Type Values Removed Values Added
Title Out-of-Bounds Read in OpENer Common Packet Format Parser

Mon, 18 May 2026 19:45:00 +0000

Type Values Removed Values Added
Title Out-of-bounds read in OpENer CPF parser
Weaknesses CWE-20

Mon, 18 May 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 18 May 2026 17:30:00 +0000

Type Values Removed Values Added
Title Out-of-bounds read in OpENer CPF parser
Weaknesses CWE-125
CWE-20

Mon, 18 May 2026 16:45:00 +0000

Type Values Removed Values Added
Description OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that is not consistently validated against the remaining data_length of the CPF slice
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-05-18T00:00:00.000Z

Updated: 2026-05-18T17:18:48.846Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38719

cve-icon Vulnrichment

Updated: 2026-05-18T17:18:40.788Z

cve-icon NVD

Status : Deferred

Published: 2026-05-18T17:16:32.127

Modified: 2026-05-18T20:27:23.023

Link: CVE-2026-38719

cve-icon Redhat

No data.