{"id":"CVE-2026-43831","aliases":["EUVD-2026-51387","GHSA-x65g-869w-3ggw"],"status":"published","title":"Successful\nexploitation of the vulnerability could allow an unauthenticated attacker to\nexploit a...","description":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","severity":{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00636,"percentile":0.50805,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-07-31T02:57:11Z","modified":"2026-10-20T09:31:04Z","products":[{"vendor":"advantech","product":"adam-3600"}],"references":[{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149"},{"url":"https://www.advantech.com/en/security-advisory","tags":["vendor-advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/blob/8846a06bd73fefb0d7b7e205f1e21f97d0b9cbe2/cves/2026/43xxx/CVE-2026-43831.json"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43831"},{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-097"},{"url":"https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-xxx"},{"url":"https://github.com/advisories/GHSA-x65g-869w-3ggw"}],"sources":{"cve":[{"id":"CVE-2026-43831","description":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","status":"published","published":"2026-07-31T02:57:11.653Z","modified":"2026-10-20T07:50:04.01Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:37:25.103021Z"}],"euvd":[{"id":"EUVD-2026-51387","description":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","status":"published","published":"2026-07-31T02:57:11Z","modified":"2026-10-20T07:50:04Z","cvss":[{"version":"4.0","score":9.2,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T16:59:44.419021Z"}],"ghsa":[{"id":"GHSA-x65g-869w-3ggw","title":"Successful\nexploitation of the vulnerability could allow an unauthenticated attacker to\nexploit a...","description":"Successful\nexploitation of the vulnerability could allow an unauthenticated attacker to\nexploit a stack-based buffer overflow in the log message functionality to\nconduct code execution.","status":"published","published":"2026-07-31T06:30:28Z","modified":"2026-10-20T09:31:04Z","cvss":[{"version":"4.0","score":9.2,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:14:02.928159Z"}],"nvd":[{"id":"CVE-2026-43831","description":"A stack-based buffer overflow vulnerability in the log message functionality could allow an unauthenticated attacker to achieve code execution.","status":"published","published":"2026-07-31T04:17:21.963Z","modified":"2026-10-20T08:16:43.62Z","cvss":[{"version":"4.0","score":9.2,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:33.955581Z"}]}}