{"id":"CVE-2023-33660","details":"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.","modified":"2026-08-12T03:51:45.588252708Z","published":"2023-06-08T00:00:00Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33660.json","cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://github.com/nanomq/NanoNNG/pull/509/commits/6815c4036a2344865da393803ecdb7af27d8bde1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33660.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33660"},{"type":"REPORT","url":"https://github.com/emqx/nanomq/issues/1155"},{"type":"PACKAGE","url":"https://github.com/emqx/nanomq"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nanomq/nanomq","events":[{"introduced":"c53e056b6957db8ccbfda154fd77a3fb85296bb7"},{"last_affected":"c53e056b6957db8ccbfda154fd77a3fb85296bb7"}],"database_specific":{"extracted_events":[{"introduced":"0.17.2"},{"last_affected":"0.17.2"}],"source":"CPE_STRING","cpe":"cpe:2.3:a:emqx:nanomq:0.17.2:*:*:*:*:*:*:*"}}],"versions":["0.17.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-33660.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}