CVE-2026-73177: CWE-345 Insufficient Verification of Data Authenticity in Advantech EKI-1242IEIMS
Nozomi Networks Labs identified a CWE-345: Insufficient Verification of Data Authenticity vulnerability in the firmware upgrade mechanism of the Advantech EKI-1242EIMS in firmware version V1.06.01. The device accepts firmware images through the authenticated web management interface without performing any cryptographic signature or certificate verification. An authenticated administrator-level attacker can install arbitrary modified firmware on the device, enabling full persistent compromise of the platform.
AI Analysis
Technical Summary
This vulnerability (CWE-345) affects the firmware upgrade process of Advantech EKI-1242IEIMS devices running firmware version 1.06.01 or earlier. The firmware upgrade mechanism accepts images through an authenticated web interface but lacks cryptographic signature or certificate verification. Consequently, an attacker with administrator-level access can upload and install malicious firmware, leading to complete and persistent control over the device.
Potential Impact
An authenticated administrator-level attacker can exploit this flaw to install arbitrary modified firmware on the device. This results in full persistent compromise of the platform, potentially allowing complete control over device functionality and data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted personnel only and monitor for unauthorized firmware changes.
CVE-2026-73177: CWE-345 Insufficient Verification of Data Authenticity in Advantech EKI-1242IEIMS
Description
Nozomi Networks Labs identified a CWE-345: Insufficient Verification of Data Authenticity vulnerability in the firmware upgrade mechanism of the Advantech EKI-1242EIMS in firmware version V1.06.01. The device accepts firmware images through the authenticated web management interface without performing any cryptographic signature or certificate verification. An authenticated administrator-level attacker can install arbitrary modified firmware on the device, enabling full persistent compromise of the platform.
CVSS v4.0
Score 8.6high
Affected software
Advantech
EKI-1242IEIMS
Advantech
EKI-1242EIMS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-345) affects the firmware upgrade process of Advantech EKI-1242IEIMS devices running firmware version 1.06.01 or earlier. The firmware upgrade mechanism accepts images through an authenticated web interface but lacks cryptographic signature or certificate verification. Consequently, an attacker with administrator-level access can upload and install malicious firmware, leading to complete and persistent control over the device.
Potential Impact
An authenticated administrator-level attacker can exploit this flaw to install arbitrary modified firmware on the device. This results in full persistent compromise of the platform, potentially allowing complete control over device functionality and data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted personnel only and monitor for unauthorized firmware changes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Nozomi
- Date Reserved
- 2026-08-11T09:36:40.350Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aaa9a6155bf5e2cf5aab8ee
Added to database: 09/16/2026, 13:32:17 UTC
Last enriched: 09/16/2026, 13:46:49 UTC
Last updated: 09/17/2026, 04:20:59 UTC
Views: 9
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