Uncontrolled Resource Consumption

CVE-2026-73175

Summary

Nozomi Networks Labs identified a CWE-400: Uncontrolled Resource Consumption vulnerability in the OPC UA gateway component.

Impact

An adjacent unauthenticated attacker may exhaust the server session pool and cause a complete denial of service to all legitimate OPC UA clients by opening multiple anonymous sessions

Issue Date

September 16, 2026

Affects

This issue affects: Advantech EKI-1242IEIMS and EKI-1242EIMS in firmware version V1.06.01.

CVE Name

CVE-2026-73175

CVSS Details

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score

7.1

Solution

Update to firmware version 2.00.01.

Mitigations

Acknowledgements

Simone Bossi at Nozomi Networks

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