{"api_version":"1","generated_at":"2026-07-24T01:14:59+00:00","cve":"CVE-2018-12543","urls":{"html":"https://cve.report/CVE-2018-12543","api":"https://cve.report/api/cve/CVE-2018-12543.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-12543","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12543"},"summary":{"title":"CVE-2018-12543","description":"In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.","state":"PUBLIC","assigner":"security@eclipse.org","published_at":"2018-11-15 15:29:00","updated_at":"2019-10-09 23:34:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295","name":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295","refsource":"CONFIRM","tags":["Issue Tracking","Vendor Advisory"],"title":"539295 – (CVE-2018-12543) Remote crash in Mosquitto 1.5 to 1.5.2","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-12543","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12543","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"12543","vulnerable":"1","versionEndIncluding":"1.5.2","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"eclipse","cpe5":"mosquitto","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2018-12543","qid":"500408","title":"Alpine Linux Security Update for mosquitto"},{"cve":"CVE-2018-12543","qid":"504166","title":"Alpine Linux Security Update for mosquitto"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@eclipse.org","ID":"CVE-2018-12543","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Eclipse Mosquitto","version":{"version_data":[{"version_affected":">=","version_value":"1.5"},{"version_affected":"<=","version_value":"1.5.2"}]}}]},"vendor_name":"The Eclipse Foundation"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-617: Reachable Assertion"}]}]},"references":{"reference_data":[{"name":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295","refsource":"CONFIRM","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=539295"}]}},"nvd":{"publishedDate":"2018-11-15 15:29:00","lastModifiedDate":"2019-10-09 23:34:00","problem_types":["CWE-20"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/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},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*","versionStartIncluding":"1.5.0","versionEndIncluding":"1.5.2","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"12543","Ordinal":"129111","Title":"CVE-2018-12543","CVE":"CVE-2018-12543","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"12543","Ordinal":"1","NoteData":"In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"12543","Ordinal":"2","NoteData":"2018-11-15","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"12543","Ordinal":"3","NoteData":"2018-11-15","Type":"Other","Title":"Modified"}]}}}