{"id":"CVE-2019-6831","aliases":["EUVD-2019-16385","GHSA-gvw6-phvj-chmf"],"status":"published","title":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in...","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01401,"percentile":0.72736,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-754"],"published":"2019-09-17T19:22:59Z","modified":"2026-06-17T02:39:45Z","products":[{"vendor":"schneider electric se","product":"bmxnor0200h ethernet / serial rtu module"},{"vendor":"schneider-electric","product":"bmxnor0200h_firmware"}],"references":[{"url":"https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://security.cse.iitk.ac.in/responsible-disclosure","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6831"},{"url":"https://github.com/advisories/GHSA-gvw6-phvj-chmf"}],"sources":{"cve":[{"id":"CVE-2019-6831","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.","status":"published","published":"2019-09-17T19:22:59Z","modified":"2024-08-04T20:31:04.375Z","cwes":["CWE-754"],"updated_at":"2026-11-02T14:20:23.381621Z"}],"euvd":[{"id":"EUVD-2019-16385","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.","status":"published","published":"2019-09-17T19:22:59Z","modified":"2024-08-04T20:31:04Z","updated_at":"2026-11-03T03:06:48.069977Z"}],"ghsa":[{"id":"GHSA-gvw6-phvj-chmf","title":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in...","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.","status":"published","published":"2022-05-24T16:56:24Z","modified":"2023-02-01T05:03:14Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:50:02.204531Z"}],"nvd":[{"id":"CVE-2019-6831","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.","status":"published","published":"2019-09-17T20:15:12.343Z","modified":"2026-06-17T02:39:45.527Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:05:28.126831Z"}]}}