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
Published: 2026-05-18
Score: 6.2 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

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

Subscriptions

Eipstackgroup Opener
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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: 2026-06-17T10:41:45.710

Link: CVE-2026-38719

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T08:19:04Z

Weaknesses