OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in…

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. May 18, 2026 · NIST NVD

   Detected

   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

2. Jun 17, 2026 · NIST NVD

   Updated

   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

Sources

• CVE.orgVulnerability recordCVE-2026-38719

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-38719

  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 i

  nvd.nist.gov

References

• Reference · github.com
• Reference · github.com