Is CVE-2026-27467 actively exploited?

No active exploitation of CVE-2026-27467 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27467 be exploited remotely?

Yes. CVE-2026-27467 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27467?

CVE-2026-27467 has a CVSS score of 2.4 (LOW) and an EPSS exploitation probability of 0.03%.

HOME VULNERABILITIESCVE-2026-27467

LOW

CVE-2026-27467

CWE-200Published: February 21, 2026· Updated: Feb 26, 2026

2.4

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:6.8th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27467 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.