{"id":"CVE-2021-33000","aliases":["EUVD-2021-19721","GHSA-v5mq-7f48-6rhv"],"status":"published","title":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may...","description":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01041,"percentile":0.64438,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-787"],"published":"2021-06-24T17:30:20Z","modified":"2026-06-17T03:53:59Z","products":[{"vendor":"advantech","product":"webaccess hmi designer"},{"vendor":"advantech","product":"webaccess\\/hmi_designer"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33000"},{"url":"https://github.com/advisories/GHSA-v5mq-7f48-6rhv"}],"sources":{"cve":[{"id":"CVE-2021-33000","description":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).","status":"published","published":"2021-06-24T17:30:20Z","modified":"2024-08-03T23:42:19.123Z","cwes":["CWE-122"],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-19721","description":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).","status":"published","published":"2021-06-24T17:30:20Z","modified":"2024-08-03T23:42:19Z","updated_at":"2026-11-03T03:24:35.30045Z"}],"ghsa":[{"id":"GHSA-v5mq-7f48-6rhv","title":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may...","description":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).","status":"published","published":"2022-05-24T19:06:15Z","modified":"2023-01-30T05:00:30Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:13.0899Z"}],"nvd":[{"id":"CVE-2021-33000","description":"Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).","status":"published","published":"2021-06-24T18:15:08.54Z","modified":"2026-06-17T03:53:59.15Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:06:54.892562Z"}]}}