{"cve":"CVE-2017-7650","nvd":{"published":"2017-09-11T16:29:00.260","modified":"2026-06-17T01:24:53.130","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-287"],"references":["http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/","http://www.debian.org/security/2017/dsa-3865","http://www.securityfocus.com/bid/98741","https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765","http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/"],"products":["debian:debian_linux","eclipse:mosquitto"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-7650","score":0.02472,"percentile":0.84525,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}