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    CVE-2017-7650

    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:Sep 11, 2017
    Last Modified:Apr 20, 2025
    EPS:Sep 11, 2017
    EPSS Score:0.00646
    CVSS Score:6.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Eclipse
    Product
    Mosquitto

    Exploits

    https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765

    Common Weakness Enumeration

    CWE-287 Improper Authentication

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High