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    CVE-2024-42655

    An access control issue in NanoMQ v0.21.10 allows attackers to bypass security restrictions and access sensitive system topic messages using MQTT wildcard characters.

    Published:Jul 29, 2025
    Last Modified:Aug 6, 2025
    EPS:Jul 29, 2025
    EPSS Score:0.00051
    CVSS Score:8.8

    Affected Products

    Vendor
    Emqx
    Product
    Nanomq

    Exploits

    https://github.com/nanomq/nanomq/issues/1782#issuecomment-2171025812https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.md

    Common Weakness Enumeration

    CWE-284 Improper Access Control

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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