{"id":"CVE-2023-33660","aliases":["EUVD-2023-37816","GHSA-f7qc-364p-36r6"],"status":"published","title":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered...","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01195,"percentile":0.68325,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-06-08T00:00:00Z","modified":"2026-10-28T02:31:07Z","products":[{"vendor":"emqx","product":"nanomq"}],"references":[{"url":"https://github.com/emqx/nanomq","tags":["x_transferred","Product","package"]},{"url":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1","tags":["x_transferred","Patch","web"]},{"url":"https://github.com/emqx/nanomq/issues/1155","tags":["x_transferred","Exploit","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33660","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-f7qc-364p-36r6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33660.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-33660","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","status":"published","published":"2023-06-08T00:00:00Z","modified":"2025-01-06T21:21:57.214Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:34.170609Z"}],"euvd":[{"id":"EUVD-2023-37816","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","status":"published","published":"2023-06-08T00:00:00Z","modified":"2025-01-06T21:21:57Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:25.174818Z"}],"ghsa":[{"id":"GHSA-f7qc-364p-36r6","title":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered...","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","status":"published","published":"2023-06-08T12:30:17Z","modified":"2024-04-04T04:40:28Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:56:26.167088Z"}],"nvd":[{"id":"CVE-2023-33660","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","status":"published","published":"2023-06-08T12:15:09.347Z","modified":"2026-06-17T06:02:05.37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:08:05.329837Z"}],"osv":[{"id":"CVE-2023-33660","description":"A heap buffer overflow vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function copyn_str() in the file mqtt_parser.c. An attacker could exploit this vulnerability to cause a denial of service attack.","status":"published","published":"2023-06-08T00:00:00Z","modified":"2026-10-28T02:31:07.754738284Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:32.116263Z"}]}}