CVE-2026-73166Network attack vectorHinoki check available

Root code execution via web interface injection

Published Sep 16, 2026 · Updated Sep 16, 2026

Code injection in Advantech EKI-1242IEIMS and EKI-1242EIMS firmware 1.06.01 and earlier allows remote authenticated users to execute code. Nozomi and Advantech identify the web management interface as the affected locus but do not disclose which endpoint or parameter generates code from untrusted input. Access to an authenticated management session is required; successful exploitation runs arbitrary operating-system commands as root on the gateway.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in Advantech EKI-1242IEIMS and EKI-1242EIMS firmware 1.06.01 and earlier allows remote authenticated users to execute code. Nozomi and Advantech identify the web management interface as the affected locus but do not disclose which endpoint or parameter generates code from untrusted input. Access to an authenticated management session is required; successful exploitation runs arbitrary operating-system commands as root on the gateway.

The record

CVE
CVE-2026-73166
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
Advantech
Product
EKI-1242IEIMS
Classifications
CWE-94, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.06.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Advantech · EKI-1242IEIMSversion=0 <=1.06.01
Advantech · EKI-1242EIMSversion=0 <=1.06.01

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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