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CreateCommonPacketFormatStructure CVE-2026-38719

| EUVD-2026-30780 MEDIUM
Out-of-bounds Read (CWE-125)
2026-05-18 mitre GHSA-cr85-g5v9-2m32
Buffer Overflow Information Disclosure
6.2
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

1
CVE Published
May 18, 2026 - 00:00 nvd
UNKNOWN (no severity yet)

DescriptionNVD

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

Analysis

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

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CVE-2026-38719 vulnerability details – vuln.today
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