CVE-2022-41963
lowpriority · track · 12EPSS 0.005 · 38 %ileDEEUUSEPSS · scored 2026-10-23
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
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-2350BigBlueButton: Mehrere SchwachstellenDeutsch2022-12-15csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in BigBlueButton ausnutzen, um Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen, Daten zu manipulieren und Sicherheitsmaßnahmen zu umgehen.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-41963/cnnvd
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3cnnvd
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2022-41963cnnvd
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3enisa_euvd
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpenisa_euvd
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3Release NotesThird Party Advisorynvd
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpPatchRelease NotesThird Party Advisorynvd
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