{"id":"CVE-2026-43831","title":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","summary":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","severity":"critical","cvss":9.2,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/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"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-07-31T19:56:37.918855Z"},"published":"2026-07-31","updated":"2026-10-20","sourceUpdated":"2026-10-20T07:50:04.010Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43831","references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149"},{"url":"https://www.advantech.com/en/security-advisory"},{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-xxx"}],"tags":["cve.org"],"epss":0.00636,"epssPercentile":0.50255,"scores":{"cna":9.2,"adp":7.5},"ingestedAt":"2026-09-11T18:53:56.569Z","slug":"CVE-2026-43831","body":"## Overview\n\nA stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.\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":"midnight","depthScore":51,"depthScoreParts":{"impact":50.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":225451,"id":"CVE-2026-43831","ts":1792498017388,"field":"cvss","old":"7.5","new":"9.2"},{"seq":225450,"id":"CVE-2026-43831","ts":1792498017388,"field":"severity","old":"high","new":"critical"},{"seq":225415,"id":"CVE-2026-43831","ts":1792496918871,"field":"cvss","old":"9.2","new":"7.5"},{"seq":225414,"id":"CVE-2026-43831","ts":1792496918871,"field":"severity","old":"critical","new":"high"},{"seq":225403,"id":"CVE-2026-43831","ts":1792482983383,"field":"cvss","old":"7.5","new":"9.2"},{"seq":225402,"id":"CVE-2026-43831","ts":1792482983383,"field":"severity","old":"high","new":"critical"}]}