CVE-2020-27607 — MEDIUM (6.5)

Q: How severe is CVE-2020-27607?

CVE-2020-27607 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-27607?

Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.

Vulnerability Description

In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to stop sending audio data to the server, and thus a modified server could store the audio data and/or transmit it to one or more meeting participants or other third parties.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	< 2.2.28

References

https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-201ExploitThird Party Advisory
https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-201ExploitThird Party Advisory

FAQ

What is CVE-2020-27607?

CVE-2020-27607 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In BigBlueButton before 2.2.28 (or earlier), the client-side Mute button only signifies that the server should stop accepting audio data from the client. It does not directly configure the client to s...

How severe is CVE-2020-27607?

CVE-2020-27607 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27607?

Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.