CVE-2026-43835
Deferred Deferred - Pending Action

Forged Firmware Upload in Device Firmware

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: CSA

Description
A vulnerability in the firmware upgrade functionality could allow an authenticated attacker to upload a forged firmware upgrade file, potentially compromising the device permanently.

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Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-11-09
AI Q&A
2026-10-20
EPSS Evaluated
2026-11-08
NVD
CVE-2026-43835
EUVD
EUVD-2026-104830

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Advantech ADAM-3600 prior to version 2.8.5.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-345 The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

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Executive Summary

This vulnerability allows an authenticated attacker to upload a forged firmware upgrade file to a device. This could lead to permanent compromise of the device by replacing legitimate firmware with malicious code.

Impact Analysis

If exploited, this vulnerability could allow attackers to take control of the device, disrupt its operations, or use it as a foothold to access other systems. It may result in data breaches, system failures, or unauthorized access to sensitive information.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized access to personal or sensitive data, potential data breaches, and failure to maintain system integrity and security controls.

Mitigation Strategies

Disable firmware upgrade functionality if not required. Restrict access to firmware upgrade features to authorized personnel only. Monitor network traffic for unauthorized firmware upload attempts. Ensure all firmware files are verified with cryptographic signatures before installation.

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