CVE-2022-41963

Name: CVE-2022-41963
Creator: NVD / NIST
Published: 2022-12-16T14:15:09.17+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.1/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2022-41963 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. The attacker must be a meeting participant. This issue is patched in version 2.4.3 an version 2.5-alpha-1

Metrics

CVSS 3.1

3.1/10

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

EPSS Probability

0.42%

33.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-281

Affected Software

Vendor	Product	Versions
Bigbluebutton	Bigbluebutton	< 2.4.3

References

https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpPatch, Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3Release Notes, Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpPatch, Release Notes, Third Party Advisory

Timeline

Published: Dec 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-41963?

How severe is CVE-2022-41963?

CVE-2022-41963 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2022-41963?

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-2022-41963?

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

Scan your code now

Source: NVD / NIST