CVE-2022-29234

Name: CVE-2022-29234
Creator: NVD / NIST
Published: 2022-06-02T00:15:08.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2022-29234 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.78%

51.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	>= 2.2.0, < 2.3.18
Bigbluebutton	Bigbluebutton	>= 2.4, < 2.4.1

References

https://github.com/bigbluebutton/bigbluebutton/pull/13850Patch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjvPatch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/pull/13850Patch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjvPatch, Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29234?

How severe is CVE-2022-29234?

CVE-2022-29234 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29234?

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-2022-29234?

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

Scan your code now

Source: NVD / NIST