CVE-2020-27607
CVE-2020-27607 is a medium-severity vulnerability in Bigbluebutton with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 6.4
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Bigbluebutton
- Published:
- Last modified:
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.
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 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-27607 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-27607?
- CVE-2020-27607 affects Bigbluebutton. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-27607?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-27607 published?
- CVE-2020-27607 was published on 2020-10-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*
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