Authentication Bypass in Advantech Firmware Upgrade Function
CVE-2026-43835

8.6HIGH

Key Information:

Vendor

Advantech
Status
Adam-3600
Vendor
CVE Published:
20 October 2026

What is CVE-2026-43835?

A vulnerability in the firmware upgrade functionality of Advantech devices allows an authenticated attacker to upload a malicious firmware file. This exploit could lead to permanent compromise of the device, posing severe security risks and potential loss of device integrity. Organizations using Advantech products must promptly address this issue to safeguard their systems.

Affected Version(s)

ADAM-3600 prior to version 2.8.5.0

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-20...
https://www.advantech.com/en/security-advisory
vendor-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Simone Bossi and Raffaele Bova at Nozomi Networks
.