An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code.
CVE-2020-29042
LOWNVD 3.73.7
EchelonGraph scoreLOW confidence
This low-severity CVE scores 3.7 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
3.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 3.7Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.7
- EG Score
- 3.7(low)
- EPSS
- 60.7%
- KEV
- Not listed
Published
November 26, 2020
Last Modified
November 21, 2024
References (6)
- cve@mitrehttp://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html
- cve@mitrehttps://cxsecurity.com/issue/WLB-2020110210
- cve@mitrehttps://github.com/bigbluebutton/bigbluebutton/releases
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html
- af854a3a-2127-422b-91ae-364da2661108https://cxsecurity.com/issue/WLB-2020110210
- af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/releases
Frequently asked(5)
What is CVE-2020-29042?
CVE-2020-29042 is a low vulnerability published on November 26, 2020. An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code.
When was CVE-2020-29042 disclosed?
CVE-2020-29042 was first published in the National Vulnerability Database on November 26, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-29042 actively exploited?
CVE-2020-29042 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-29042?
CVE-2020-29042 has a CVSS v3 base score of 3.7 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2020-29042?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-29042, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-29042
Is Your Infrastructure Affected by CVE-2020-29042?
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