CVEvulnerability

CVE-2025-61602

7.5 HIGH Published 2025-10-09 Modified 2026-10-19 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 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.

Affected configurations

• bigbluebutton bigbluebutton (< 3.0.13)

Related

Weakness · CWE (1)

  • CWE-703 Improper Check or Handling of Exceptional Conditions weakness

References