CVE-2026-73175

Nozomi Networks Labs identified a CWE-400: Uncontrolled Resource Consumption vulnerability in the OPC UA gateway component of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows an adjacent unauthenticated attacker to exhaust the server session pool and cause a complete denial of service to all legitimate OPC UA clients by opening multiple anonymous sessions.

Score

CVSS 4.0 7.1 High

Status

Awaiting Analysis - prodsec@nozominetworks.com

Published

2026-09-16

Last modified

2026-09-17

Weaknesses

CWE-400

Affected products

• Eki-1242eims (Advantech)
• Eki-1242ieims (Advantech)

References

• https://advcloudfiles.advantech.com/cms/5dafee28-ad53-4d07-a328-7896fcc24b6e/Security%20Advisory%20PDF%20File/SECURITY-…
• https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-73175