CVE-2024-42655 – NanoMQ MQTT Wildcard Access Control Bypass

The following table lists the changes that have been made to the
CVE-2024-42655 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 29, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added Reference https://github.com/nanomq/nanomq
    Added Reference https://github.com/nanomq/nanomq/issues/1782#issuecomment-2171025812
    Added Reference https://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42655.md
  • CVE Modified
    by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 29, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-284
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