PT-2025-41489 · Unknown · Bigbluebutton

Brocked200 + 1 · CVE-2025-61601 · Published 2025-10-09 · Updated 2025-10-20

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV: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) issue exists that allows any authenticated user to freeze or crash the server by abusing the polling feature's Choices response type. An attacker can submit a malicious payload with a massive array in the answerIds field, causing the current meeting – and potentially all meetings on the server – to become unresponsive. The attack leverages the answerIds field to overwhelm the server's processing capabilities.

Recommendations Update to version 3.0.13 or later.

Exploit

Fix

DoS

Weakness Enumeration

CWE-703

Related Identifiers

CVE-2025-61601

GHSA-73J3-V3FQ-FQX5

Affected Products

Bigbluebutton

References · 10

• 🔥 https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/61xxx/CVE-2025-61601.json · Exploit
• 🔥 https://youtube.com/watch?v=BwROSVIYjOY · Exploit
• https://github.com/bigbluebutton/bigbluebutton/pull/23662 · Patch
• https://osv.dev/vulnerability/CVE-2025-61601 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-61601 · Security Note
• https://t.me/cveNotify/139419 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1976507431615082819 · Twitter Post
• https://twitter.com/CveTodo/status/1976407875359527055 · Twitter Post
• https://twitter.com/CVEnew/status/1976389900774539488 · Twitter Post