{"id":"CVE-2023-7243","aliases":["EUVD-2023-59424","GHSA-wm94-vqmp-vf4v"],"status":"published","title":"Ethercat Zeek Plugin Out-of-bounds Write","description":"Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary 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":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00819,"percentile":0.57482,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2024-03-01T20:16:06Z","modified":"2026-06-17T06:52:23Z","products":[{"vendor":"cisa","product":"icsnpp-ethercat"},{"vendor":"cisa","product":"industrial control systems network protocol parsers (icsnpp) - ethercat plugin for zeek"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-24-051-02","tags":["x_transferred","US Government Resource","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-7243"},{"url":"https://github.com/advisories/GHSA-wm94-vqmp-vf4v"}],"sources":{"cve":[{"id":"CVE-2023-7243","title":"Ethercat Zeek Plugin Out-of-bounds Write","description":"\nIndustrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary code execution.\n\n\n\n","status":"published","published":"2024-03-01T20:16:06.673Z","modified":"2024-08-02T08:57:35.067Z","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":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:33.794347Z"}],"euvd":[{"id":"EUVD-2023-59424","description":"\nIndustrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary code execution.\n\n\n\n","status":"published","published":"2024-03-01T20:16:06Z","modified":"2024-08-02T08:57:35Z","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"}],"updated_at":"2026-11-03T03:50:08.95234Z"}],"ghsa":[{"id":"GHSA-wm94-vqmp-vf4v","title":"\nIndustrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions...","description":"\nIndustrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary code execution.\n\n\n\n","status":"published","published":"2024-03-01T21:31:16Z","modified":"2026-03-21T05:28:06Z","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":"2026-11-02T15:06:45.356317Z"}],"nvd":[{"id":"CVE-2023-7243","description":"\nIndustrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary code execution.\n\n\n\n","status":"published","published":"2024-03-01T21:15:07.417Z","modified":"2026-06-17T06:52:23.67Z","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":"secondary"},{"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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:09:07.077422Z"}]}}