Quick answers
- Is CVE-2026-82947 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-82947 being exploited in the wild.
- How severe is CVE-2026-82947?
- High severity, with a CVSS score of 7.1, published 26 October 2026.
- Which products and versions are affected?
- RT-Labs SOEM 2.0.0 and earlier.
- Is there a fix for CVE-2026-82947?
- 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-2026-82947 attacked?
- It is attacked over the network or from the adjacent network, in a software library.
- Am I affected by CVE-2026-82947?
- Check whether you run RT-Labs SOEM 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
SOEM versions 2.0.0 and earlier fail to validate length and offset values extracted from EtherCAT device messages before using them to read from buffers. An attacker controlling a malicious EtherCAT slave device can craft frames with out-of-bounds length or offset values, causing the master to perform out-of-bounds reads. This can lead to information disclosure or denial of service.
Affected products
- RT-Labs SOEM 2.0.0 and earlier
Timeline
- 2026-10-26: disclosed