{"id":"CVE-2017-7650","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7650","generatedAt":"2026-10-28T21:54:22.003Z","title":"In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'.","description":"In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.","published":"2017-09-11T16:29:00.000Z","lastModified":"2026-06-17T01:24:53.000Z","status":"Modified","sourceIdentifier":"emo@eclipse.org","cvss":{"version":"3.0","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-287"],"affected":["eclipse/mosquitto","debian/debian linux"],"epss":{"score":0.02472,"percentile":0.84437,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.47%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/","tags":["Patch","Vendor Advisory"],"source":"emo@eclipse.org"},{"url":"http://www.debian.org/security/2017/dsa-3865","tags":["Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"http://www.securityfocus.com/bid/98741","tags":["Third Party Advisory","VDB Entry"],"source":"emo@eclipse.org"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765","tags":["Exploit","Third Party Advisory"],"source":"emo@eclipse.org"},{"url":"http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2017/dsa-3865","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/98741","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7650","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}