CVE-2026-73174: Advantech EKI-1242 cleartext transmission of sensitive information

CVE-2026-73174 · Severity: info · CVSS 8.7 · Published 2026-09-16

Advantech EKI-1242 devices are industrial edge computing appliances used to manage and monitor network infrastructure in operational technology environments. A vulnerability in the management protocol allows a network-adjacent attacker to intercept and read sensitive device identity and network metadata in cleartext, potentially compromising network security and enabling further attacks on the infrastructure.

Technologies: Advantech EKI-1242EIMS, Advantech EKI-1242IEIMS. Vendors: Advantech.

Quick answers

Is CVE-2026-73174 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-73174 being exploited in the wild.
How severe is CVE-2026-73174?
Informational severity, with a CVSS score of 8.7, published 16 September 2026.
Which products and versions are affected?
Advantech EKI-1242EIMS V1.06.01; Advantech EKI-1242IEIMS V1.06.01.
Is there a fix for CVE-2026-73174?
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-2026-73174 attacked?
It is attacked from the adjacent network or over the network, in a network appliance.
Am I affected by CVE-2026-73174?
Check whether you run Advantech EKI-1242EIMS or Advantech EKI-1242IEIMS 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

This CWE-319 vulnerability exists in the edgserver management protocol of Advantech EKI-1242IEIMS and EKI-1242EIMS devices running firmware version V1.06.01. The management protocol transmits sensitive device identity and network metadata without encryption, allowing a network-adjacent passive observer to intercept and recover this information. No authentication or user interaction is required; an attacker only needs network proximity to the device. The vulnerability has been addressed in firmware version 2.00.01.

Affected products

  • Advantech EKI-1242IEIMS V1.06.01
  • Advantech EKI-1242EIMS V1.06.01

Timeline

  • 2026-09-16: disclosed

References

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