CVE-2022-41963 json
BigBlueButton contains Improper Preservation of Permissions for whiteboard
published 2022-12-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-45069
- cvss
- 2.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
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
Patch / fix
- bigbluebutton bigbluebutton 2.4.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- bigbluebutton bigbluebutton
Classification
- Weakness
-
- CWE-281 Improper Preservation of Permissions
References
-
github.com
/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfp
patch, release-notes, third-party-advisory
-
github.com
/bigbluebutton/bigbluebutton/releases/tag/v2.4.3
release-notes, third-party-advisory
Sources
- CVE List CVE-2022-41963
- NVD CVE-2022-41963
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