CVE-2026-10703
EIPStackGroup OpENer SendRRData cipmessagerouter.c CreateMessageRouterRequestStructure use after free
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jun 3, 2026
- Updated
- Jun 3, 2026
- Reserved
- Jun 2, 2026
Description
A security vulnerability has been detected in EIPStackGroup OpENer up to 2.3.0. Affected is the function CreateMessageRouterRequestStructure of the file cipmessagerouter.c of the component SendRRData Handler. The manipulation leads to use after free. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
OpENerEIPStackGroup |
|
References
- VDB-368016 | EIPStackGroup OpENer SendRRData cipmessagerouter.c CreateMessageRouterRequestStructure use after freevdb-entrytechnical-description
- VDB-368016 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-10703 | CVE Analysis and Reportthird-party-advisory
- Submit #830921 | Linux OpENer (Open EtherNet/IP Stack) lastet Use After Freethird-party-advisory
- https://github.com/EIPStackGroup/OpENer/issues/566issue-tracking
- https://github.com/user-attachments/files/27100961/poc.zipexploit
- https://github.com/EIPStackGroup/OpENer/product
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