BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.
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Affected Vendors & Products
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History
Mon, 20 Oct 2025 15:45:00 +0000
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CPEs | cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:* |
Wed, 15 Oct 2025 20:15:00 +0000
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ssvc
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Fri, 10 Oct 2025 11:30:00 +0000
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First Time appeared |
Bigbluebutton
Bigbluebutton bigbluebutton |
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Vendors & Products |
Bigbluebutton
Bigbluebutton bigbluebutton |
Thu, 09 Oct 2025 20:45:00 +0000
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Description | BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available. | |
Title | BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation | |
Weaknesses | CWE-703 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-10-09T20:29:25.006Z
Updated: 2025-10-15T19:47:14.421Z
Reserved: 2025-09-26T16:25:25.151Z
Link: CVE-2025-61601

Updated: 2025-10-15T19:46:49.905Z

Status : Analyzed
Published: 2025-10-09T21:15:39.477
Modified: 2025-10-20T15:33:21.023
Link: CVE-2025-61601

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