{"id":"CVE-2023-0809","details":"In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.","modified":"2026-07-08T06:36:15.445881547Z","published":"2023-10-02T18:56:26.824Z","related":["openSUSE-SU-2024:13546-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0809.json","unresolved_ranges":[{"extracted_events":[{"fixed":"2.0.16"}],"source":"AFFECTED_FIELD"},{"source":"DESCRIPTION","extracted_events":[{"fixed":"2.0.16"}]}],"cna_assigner":"eclipse","cwe_ids":["CWE-789"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0809.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0809"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202401-09"},{"type":"ARTICLE","url":"https://mosquitto.org/blog/2023/08/version-2-0-16-released/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse-mosquitto/mosquitto","events":[{"introduced":"0"},{"fixed":"9e0831b3ed87f9b9a60a01f74040a077f40946c4"}],"database_specific":{"source":"DESCRIPTION","extracted_events":[{"introduced":"0"},{"fixed":"2.0.16"}]}}],"versions":["v2.0.15","v2.0.14","v2.0.13","v2.0.12","v2.0.11","v2.0.10","v2.0.9","v2.0.8","v2.0.7","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v1.6.12","v1.6.11","v1.6.10","v1.6.9","v1.6.8","v1.6.7","v1.6.6","v1.6.5","v1.6.4","v1.6.3","v1.6.2","v1.6.1","v1.6","v1.5","v1.4.15","v1.4.14","v1.4.13","v1.4.12","v1.4.11","v1.4.10","v1.4.9","v1.4.8","v1.4.7","v1.4.6","v1.4.5","v1.4.4","v1.4.3","v1.4.2","v1.4.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-0809.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"}]}