CVE-2026-27467

LOW

2.0

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.12.0

SeveridadeLOW

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosHIGH

Interacao do usuarioREQUIRED

Publicado2/21/2026

Ultima modificacao2/26/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

bigbluebutton:bigbluebutton

Fraquezas (CWE)

CWE-200

Referencias

https://github.com/bigbluebutton/bigbluebutton/commit/3aa47832bc2b17178799bd932453c226e8f95703(security-advisories@github.com)

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-6gj9-5rhm-68j8(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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