Quick answers
- Is CVE-2026-75346 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75346 being exploited in the wild.
- How severe is CVE-2026-75346?
- High severity, with a CVSS score of 7.5, published 9 October 2026.
- Which products and versions are affected?
- EIPStackGroup OpENer v2.3 and master through commit 76b95cf.
- Is there a fix for CVE-2026-75346?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-75346 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-75346?
- Check whether you run EIPStackGroup OpENer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in the server-side CIP SetAttributeList service implementation. A remote attacker can trigger this by sending a crafted EtherNet/IP message, causing the device to read memory beyond allocated bounds. This results in denial of service through application crash or malfunction; no authentication or user interaction is required.
Affected products
- EIPStackGroup OpENer v2.3 and master through commit 76b95cf
Timeline
- 2026-10-09: disclosed