{"id":"CVE-2019-6550","aliases":["EUVD-2019-16109","GHSA-m53j-r3hw-w76p"],"status":"published","title":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow...","description":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.06092,"percentile":0.93462,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2019-04-05T18:09:34Z","modified":"2026-06-17T02:39:14Z","products":[{"vendor":"advantech","product":"webaccess"},{"vendor":"advantech","product":"webaccess/scada"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-092-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-19-585/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6550"},{"url":"https://github.com/advisories/GHSA-m53j-r3hw-w76p"}],"sources":{"cve":[{"id":"CVE-2019-6550","description":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.","status":"published","published":"2019-04-05T18:09:34Z","modified":"2024-08-04T20:23:21.543Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:20:23.048861Z"}],"euvd":[{"id":"EUVD-2019-16109","description":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.","status":"published","published":"2019-04-05T18:09:34Z","modified":"2024-08-04T20:23:21Z","updated_at":"2026-11-03T03:06:49.204502Z"}],"ghsa":[{"id":"GHSA-m53j-r3hw-w76p","title":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow...","description":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.","status":"published","published":"2022-05-13T01:14:50Z","modified":"2023-02-01T05:04:37Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:10.388803Z"}],"nvd":[{"id":"CVE-2019-6550","description":"Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.","status":"published","published":"2019-04-05T19:29:00.31Z","modified":"2026-06-17T02:39:14.523Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:05:09.523883Z"}]}}