CVEvulnerability

CVE-2026-27467

2.4 LOW Published 2026-02-21 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
2.0 LOW — CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
2.4 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
Weaknesses
CWE-200

Description

BigBlueButton is an open-source virtual classroom. In versions 3.0.19 and below, when first joining a session with the microphone muted, the client sends audio to the server regardless of mute state. Media is discarded at the server side, so it isn't audible to any participants, but this may allow for malicious server operators to access audio data. The behavior is only incorrect between joining the meeting and the first time the user unmutes. This issue has been fixed in version 3.0.20.

Affected configurations

• bigbluebutton bigbluebutton (< 3.0.20)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References