CVEvulnerability
CVE-2025-61601
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2025-10-09
- Last modified
- 2026-10-19
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-703
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.
Affected configurations
• bigbluebutton bigbluebutton (< 3.0.13)
Related
Weakness · CWE (1)
- CWE-703 Improper Check or Handling of Exceptional Conditions weakness
References
- https://github.com/bigbluebutton/bigbluebutton/pull/23662 Issue Tracking, Patch
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5 Exploit, Vendor Advisory
- https://www.youtube.com/watch?v=BwROSVIYjOY Exploit
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5 Exploit, Vendor Advisory
- https://www.youtube.com/watch?v=BwROSVIYjOY Exploit