CVE-2026-38719 Details
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
A vulnerability allowing out-of-bounds read has been identified in OpENer version 2.3-558-g1e99582. This issue arises in the Common Packet Format (CPF) parser, specifically within the 'CreateCommonPacketFormatStructure()' function located in 'source/src/enet_encap/cpf.c'. The vulnerability is triggered by a crafted ENIP/CPF message that contains an attacker-controlled 'item_count' value, which is not properly validated against the remaining 'data_length' of the CPF slice. This oversight can lead to reading beyond the intended buffer, potentially causing a heap-based memory corruption.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 18, 2026CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/EIPStackGroup/OpENer/issues/558 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/EIPStackGroup/OpENer | [email protected] | ProductVendor |
| https://github.com/EIPStackGroup/OpENer/issues/558 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| EIPStackGroup OpENer | v2.3-558-g1e99582 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 18, 2026 | CVE Modified | CISA-ADP |
| May 18, 2026 | New CVE Received | [email protected] |
Volerion