---
id: CVE-2026-73173
title: >-
  Nozomi Networks Labs identified a CWE-306: Missing Authentication for Critical
  Function vulnerability in the edgserver management protocol of Advantech
  EKI-1242EIMS in firmware version V1.06.01 that allows a remote unauthenticated
  attack…
summary: >-
  Nozomi Networks Labs identified a CWE-306: Missing Authentication for Critical
  Function vulnerability in the edgserver management protocol of Advantech
  EKI-1242EIMS in firmware version V1.06.01 that allows a remote unauthenticated
  attack…
severity: high
cvss: 8.8
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-306
vendor: Advantech
product: EKI-1242IEIMS
affected:
  - EKI-1242IEIMS <= 1.06.01
  - EKI-1242EIMS <= 1.06.01
published: '2026-09-16'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T11:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73173'
references:
  - url: >-
      https://advcloudfiles.advantech.com/cms/5dafee28-ad53-4d07-a328-7896fcc24b6e/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----EKI-1242IEIMS-updated-20260904.pdf
    label: prodsec@nozominetworks.com
  - url: >-
      https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-73173
    label: prodsec@nozominetworks.com
tags:
  - nvd
  - cve.org
epss: 0.0071
epssPercentile: 0.51454
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T18:56:03.810842Z'
cvssSource: cna
ingestedAt: '2026-09-16T13:56:12.611Z'
---

## Overview

Nozomi Networks Labs identified a CWE-306: Missing Authentication for Critical Function vulnerability in the edgserver management protocol of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote unauthenticated attacker to invoke critical device-management functions, including network reconfiguration, reboot, reset, and firmware upgrade, by sending crafted requests to TCP port 5058.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.