CVE-2025-61602 (GCVE-0-2025-61602)

Vulnerability from cvelistv5 – Published: 2025-10-09 20:40 – Updated: 2025-10-10 14:30
VLAI
Title
BigBlueButton vulnerable to Chat DoS via invalid reactionEmojiId
Summary
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 crash the chat functionality for all participants in a meeting by sending a malformed `reactionEmojiId` in the GraphQL mutation `chatSendMessageReaction`. Version 3.0.13 contains a patch. No known workarounds are available.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-10 14:30 UTC
CWE
  • CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8129 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
bigbluebutton bigbluebutton Affected: < 3.0.13
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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