{"id":"CVE-2021-21901","aliases":["EUVD-2021-9072","GHSA-6m5j-hmv8-95g6"],"status":"published","title":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett...","description":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to memcpy. An attacker can send a malicious packet to trigger this vulnerability.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01608,"percentile":0.76228,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120","CWE-787"],"published":"2021-12-22T18:06:43Z","modified":"2026-06-17T03:36:19Z","products":[{"vendor":"garrett","product":"ic_module_cma"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1353","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21901"},{"url":"https://github.com/advisories/GHSA-6m5j-hmv8-95g6"}],"sources":{"cve":[{"id":"CVE-2021-21901","description":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to memcpy. An attacker can send a malicious packet to trigger this vulnerability.","status":"published","published":"2021-12-22T18:06:43Z","modified":"2024-08-03T18:30:22.888Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-9072","description":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to memcpy. An attacker can send a malicious packet to trigger this vulnerability.","status":"published","published":"2021-12-22T18:06:43Z","modified":"2024-08-03T18:30:22Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T03:25:04.094929Z"}],"ghsa":[{"id":"GHSA-6m5j-hmv8-95g6","title":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett...","description":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to memcpy. An attacker can send a malicious packet to trigger this vulnerability.","status":"published","published":"2021-12-23T00:01:10Z","modified":"2023-02-03T05:02:54Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:15.749583Z"}],"nvd":[{"id":"CVE-2021-21901","description":"A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to memcpy. An attacker can send a malicious packet to trigger this vulnerability.","status":"published","published":"2021-12-22T19:15:09.63Z","modified":"2026-06-17T03:36:19.733Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-120","CWE-787"],"updated_at":"2026-11-02T14:07:02.566991Z"}]}}