CVE-2020-27607

MEDIUMCVSS 6.5/10EPSS 0.76%

Last modified

CVE-2020-27607 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.5/10

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

EPSS Probability
0.76%

50.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
BigbluebuttonBigbluebutton< 2.2.28

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-27607?
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.
How severe is CVE-2020-27607?
CVE-2020-27607 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27607?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27607?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST