# CVE-2026-43831: Advantech ADAM-3600 EdgeLink stack overflow in log message functionality

Source: https://junglewise.ai/threats/cve-2026-43831-advantech-adam-3600-edgelink-stack-overflow-in-log-message  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-31. Updated: 2026-07-31  
License: CC BY 4.0 with a link back

CVE-2026-43831 · Severity: info · CVSS 9.2 · Published 2026-07-31

Advantech ADAM-3600 EdgeLink is an industrial computing platform used for remote monitoring and data management in infrastructure and utility sectors. A vulnerability in its logging system could allow an unauthorized attacker to remotely take control of the device. This could lead to service disruptions, unauthorized access to industrial data, or the ability to manipulate connected equipment.

Technologies: [Advantech ADAM-3600 EdgeLink](https://junglewise.ai/threats/technologies/adam-3600-edgelink). Vendors: [Advantech](https://junglewise.ai/threats/vendors/advantech).

## Quick answers

**Is CVE-2026-43831 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-43831 being exploited in the wild.

**How severe is CVE-2026-43831?** Informational severity, with a CVSS score of 9.2, published 31 July 2026.

**Which products and versions are affected?** Advantech ADAM-3600 EdgeLink prior to version 2.8.5.1.

**Is there a fix for CVE-2026-43831?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-43831 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-43831?** Check whether you run Advantech ADAM-3600 EdgeLink at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stack-based buffer overflow vulnerability exists within the log message functionality of Advantech ADAM-3600 EdgeLink. The flaw is triggered by improper handling of input data during logging operations, which can be exploited by an unauthenticated attacker over the network. Successful exploitation allows for arbitrary code execution with high privileges on the underlying system. The vulnerability is addressed in version 2.8.5.1 and later. While the attack complexity is rated as high in the CVSS vector, no user interaction is required.

## Affected products

- Advantech ADAM-3600 EdgeLink prior to version 2.8.5.1

## Timeline

- 2026-07-31: advisory: Advisory published by CSA and NVD

## References

- [https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-097](https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-097)

## Related threats

- [Advantech ADAM-3600 EdgeLink stack-based buffer overflow in login](https://junglewise.ai/threats/cve-2026-43858-a-stack-based-buffer-overflow-vulnerability-could-allow-a-remote)
- [Advantech ADAM-3600 EdgeLink arbitrary code execution via proprietary protocol](https://junglewise.ai/threats/cve-2026-43857-a-vulnerability-could-allow-a-remote-authenticated-attacker-to)
- [Advantech ADAM-3600 stack-based buffer overflow in FileProcess CheckDir](https://junglewise.ai/threats/cve-2026-43856-a-stack-based-buffer-overflow-vulnerability-in-the-fileprocess)
- [Advantech ADAM-3600 EdgeLink heap buffer overflow remote authenticated code execution](https://junglewise.ai/threats/cve-2026-43855-a-heap-based-buffer-overflow-vulnerability-could-allow-a-remote)
- [Advantech ADAM-3600 EdgeLink sensitive data exposure in project files](https://junglewise.ai/threats/cve-2026-43854-a-vulnerability-could-allow-an-attacker-with-access-to-an)