Vulnerability in Bigbluebutton
CVE-2022-41963
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Bigbluebutton — versions < 2.4.3
Weakness classification (CWE)
References
- github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfp (Patch, Third Party Advisory, Release Notes)
- github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-41963?
- CVE-2022-41963 is a low-severity vulnerability in Bigbluebutton, classified under Improper Preservation of Permissions. CVSS score: 2.7/10. Published 2022-12-16.
- How severe is CVE-2022-41963?
- Low severity. CVSS v3 base score is 2.7 out of 10.