Quick answers
- Is CVE-2026-43838 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-43838 being exploited in the wild.
- How severe is CVE-2026-43838?
- Informational severity, published 20 October 2026.
- Which products and versions are affected?
- Advantech ADAM-3600 EdgeLink.
- Is there a fix for CVE-2026-43838?
- 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-2026-43838 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-43838?
- Check whether you run Advantech ADAM-3600 EdgeLink. 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
CVE-2026-43838 is a stack-based buffer overflow in the login functionality of ADAM-3600 EdgeLink that requires no authentication and can be triggered remotely. The vulnerability allows an attacker to overwrite stack memory and achieve code execution with the privileges of the service. A patch is available from Advantech.
Affected products
- Advantech ADAM-3600 EdgeLink
Timeline
- 2026-10-20: disclosed
- 2026-10-20: advisory