CVE-2021-33176

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    CVE-2021-33176

    Published: 8 Jun 2021Last Modified: 9 Jul 2026

    Summary:

    Details: VerneMQ MQTT Broker versions prior to 1.12.0 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. These inputs cause the message broker to consume large amounts of memory, resulting in the application being terminated by the operating system.

    References: https://www.synopsys.com/blogs/software-security/cyrc-advisory-rabbitmq-emqx-vernemq

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -d8da843913d699d7be15694a270a11b4ebaab751

    Affected versions

    1.12.0-rc.1

    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
    CVE-2021-33176 | CVE-DB