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CVE-2026-43858 is a stack-based buffer overflow in Advantech ADAM-3600 EdgeLink versions prior to 2.8.5.0, an industrial remote terminal unit product used for data acquisition and remote monitoring. A remote authenticated attacker with high privileges could exploit the vulnerability to execute arbitrary code. The vulnerability is rated High with a reported severity score of 8.6. The affected function and precise triggering input are not identified.
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No public exploit code observed for this vulnerability.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A stack-based buffer overflow that could enable arbitrary code execution by a remote authenticated attacker. The advisory does not identify the affected product or versions.
A stack-based buffer overflow that could enable arbitrary code execution by a remote authenticated attacker. The supplied CVSS v4.0 vector indicates network access, low attack complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impacts to the vulnerable system. The history records receipt of the CVE on October 20, 2026, but does not identify the affected product or versions.
Stack buffer overflow permits remote authenticated arbitrary code execution. Reported severity: 8.6 (High).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.