{"id":"CVE-2021-32943","aliases":["EUVD-2021-19664","GHSA-pg6r-cmxx-v6vf"],"status":"published","title":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker...","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","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":"2026-11-11","score":0.0187,"percentile":0.79622,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2021-08-10T14:03:48Z","modified":"2026-06-17T03:53:50Z","products":[{"vendor":"advantech","product":"webaccess/scada"},{"vendor":"advantech","product":"webaccess\\/scada"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32943"},{"url":"https://github.com/advisories/GHSA-pg6r-cmxx-v6vf"}],"sources":{"cve":[{"id":"CVE-2021-32943","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","status":"published","published":"2021-08-10T14:03:48Z","modified":"2024-08-03T23:33:55.931Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-19664","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","status":"published","published":"2021-08-10T14:03:48Z","modified":"2024-08-03T23:33:55Z","updated_at":"2026-11-03T03:24:35.30045Z"}],"ghsa":[{"id":"GHSA-pg6r-cmxx-v6vf","title":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker...","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","status":"published","published":"2022-05-24T19:10:35Z","modified":"2023-01-30T05:01:20Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:22.963176Z"}],"nvd":[{"id":"CVE-2021-32943","description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).","status":"published","published":"2021-08-10T15:15:07.7Z","modified":"2026-06-17T03:53:50.687Z","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":"2026-11-02T14:06:56.943671Z"}]}}