PT-2025-41490

CVE-2025-61602

Published

2025-10-09

Updated

2025-10-20

Description by

CVSS 3.1

7.5

High

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 3.0.13

Description BigBlueButton is an open-source virtual classroom. A denial-of-service (DoS) condition exists in versions prior to 3.0.13. An authenticated user can disrupt chat functionality for all meeting participants by sending a malformed reactionEmojiId within the chatSendMessageReaction GraphQL mutation. The vulnerability resides in the handling of the reactionEmojiId parameter.

Recommendations Update to version 3.0.13 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Vendors

Affected products

Weakness enumeration

CWE-703: Improper Check or Handling of Exceptional Conditions

Related identifiers

CVE-2025-61602