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CVE-2026-43852 is an arbitrary file write vulnerability affecting Advantech ADAM-3600 EdgeLink versions prior to 2.8.5.0, an industrial remote terminal unit product used for data acquisition and remote monitoring. An authenticated attacker can write files to arbitrary locations on the system. The specific vulnerable function and underlying implementation defect have not been identified. The vulnerability is rated High with a reported severity score of 8.2.
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No public exploit code observed for this vulnerability.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An arbitrary file write vulnerability that could allow an authenticated attacker to write files to arbitrary system locations. The advisory does not identify affected products, exploitation activity, patches, or mitigations.
An arbitrary file write vulnerability allowing an authenticated attacker to write files to arbitrary system locations. The supplied CVSS v4.0 vector indicates network accessibility, low attack complexity, high privileges required, no user interaction, and high integrity impact to both the vulnerable and subsequent systems. The history records receipt of the CVE on October 20, 2026, but does not identify affected products or versions.
Arbitrary file write vulnerability allows authenticated attackers to write files to arbitrary system locations. Reported severity: 8.2 (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.