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    CVE-2020-27607

    In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to stop sending audio data to the server, and thus a modified server could store the audio data and/or transmit it to one or more meeting participants or other third parties.

    Published:Oct 21, 2020
    Last Modified:Nov 21, 2024
    EPS:Oct 21, 2020
    EPSS Score:0.00225
    CVSS Score:6.5

    Affected Products

    Vendor
    Bigbluebutton
    Product
    Bigbluebutton

    Exploits

    https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.htmlhttps://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-46353 (CVSS 8.1) — BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web checksum validation could be bypas…
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    CVE-2026-41127 (CVSS 6.5) — BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that …
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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