Quick answers
- Is CVE-2026-43855 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-43855 being exploited in the wild.
- How severe is CVE-2026-43855?
- Informational severity, published 20 October 2026.
- Which products and versions are affected?
- Advantech ADAM-3600 EdgeLink.
- Is there a fix for CVE-2026-43855?
- 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-2026-43855 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-43855?
- 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
A heap-based buffer overflow vulnerability in the ADAM-3600 EdgeLink product allows an authenticated attacker to overflow heap memory and achieve remote code execution. The vulnerability requires authentication, limiting attack scope but still enabling privilege escalation or lateral movement by authenticated users. No patch information is provided in the advisory.
Affected products
- Advantech ADAM-3600 EdgeLink
Timeline
- 2026-10-20: disclosed