#VU123108 Information disclosure in BigBlueButton - CVE-2026-27467

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Main Vulnerability Database Vulnerabilities #VU123108

#VU123108 Information disclosure in BigBlueButton - CVE-2026-27467

Published: February 20, 2026


Vulnerability identifier: #VU123108
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-27467
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
BigBlueButton
Software vendor:
Blindside Networks

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to the client sends audio to the server when first joining a session even with the microphone muted. A remote administrator can gain unauthorized access to sensitive information on the system.


Remediation

Install updates from vendor's website.

External links