{"id":"CVE-2026-43856","title":"A stack-based buffer overflow vulnerability in the FileProcess::CheckDir function could allow a remote authenticated attacker to achieve arbitrary code execution via a path longer than 1024 bytes.","summary":"A stack-based buffer overflow vulnerability in the FileProcess::CheckDir function could allow a remote authenticated attacker to achieve arbitrary code execution via a path longer than 1024 bytes.","severity":"high","cvss":8.6,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvssSource":"cna","vendor":"Advantech","product":"ADAM-3600","affected":["ADAM-3600 prior to version 2.8.5.0"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T09:16:28.132Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43856","references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149"},{"url":"https://www.advantech.com/en/security-advisory"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T12:05:07.350Z","slug":"CVE-2026-43856","body":"## Overview\n\nA stack-based buffer overflow vulnerability in the FileProcess::CheckDir function could allow a remote authenticated attacker to achieve arbitrary code execution via a path longer than 1024 bytes.\n\n## Affected\n\n- `ADAM-3600 prior to version 2.8.5.0`\n\n## Remediation\n\nAdvantech has released a security update to address these vulnerabilities. Users and administrators of affected product versions are advised to update to the latest version immediately.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":47.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}