{"api_version":"1","generated_at":"2026-04-23T11:35:33+00:00","cve":"CVE-2023-33660","urls":{"html":"https://cve.report/CVE-2023-33660","api":"https://cve.report/api/cve/CVE-2023-33660.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-33660","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-33660"},"summary":{"title":"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.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2023-06-08 12:15:00","updated_at":"2023-06-14 17:45:00"},"problem_types":["CWE-787"],"metrics":[],"references":[{"url":"https://github.com/emqx/nanomq","name":"https://github.com/emqx/nanomq","refsource":"MISC","tags":[],"title":"GitHub - emqx/nanomq: An ultra-lightweight and blazing-fast MQTT broker for IoT edge","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/emqx/nanomq/issues/1155","name":"https://github.com/emqx/nanomq/issues/1155","refsource":"MISC","tags":[],"title":"heap-buffer-overflow3 in NanoMQ · Issue #1155 · emqx/nanomq · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1","name":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1","refsource":"MISC","tags":[],"title":"Fixed security issues. by lee-emqx · Pull Request #509 · nanomq/NanoNNG · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-33660","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33660","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"33660","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"emqx","cpe5":"nanomq","cpe6":"0.17.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2023-33660","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/emqx/nanomq","refsource":"MISC","name":"https://github.com/emqx/nanomq"},{"url":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1","refsource":"MISC","name":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1"},{"url":"https://github.com/emqx/nanomq/issues/1155","refsource":"MISC","name":"https://github.com/emqx/nanomq/issues/1155"}]}},"nvd":{"publishedDate":"2023-06-08 12:15:00","lastModifiedDate":"2023-06-14 17:45:00","problem_types":["CWE-787"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:emqx:nanomq:0.17.2:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}