CVE-2022-29235

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 1.0% (62nd percentile of EPSS-scored CVEs). 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: epss, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.0%
EPSS %ILE
63rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 2, 2022

Last Modified

November 21, 2024

References (10)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 182 total refreshes for this CVE.

  1. 2026-10-03 14:23 UTCEPSS rescore
  2. 2026-10-02 16:23 UTCEPSS rescore
  3. 2026-09-30 15:54 UTCEG score recompute
  4. 2026-09-30 15:00 UTCEPSS rescore
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  6. 2026-09-28 13:48 UTCEPSS rescore
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  10. 2026-09-24 21:16 UTCOSV refresh
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  1. 2026-09-05 15:25 UTCEPSS rescore
  2. 2026-09-05 12:55 UTCOSV refresh
  3. 2026-09-04 13:57 UTCEPSS rescore
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  5. 2026-09-04 05:04 UTCEPSS rescore
  6. 2026-09-02 14:09 UTCEPSS rescore
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  8. 2026-08-30 19:14 UTCEPSS rescore
  9. 2026-08-30 01:19 UTCEPSS rescore
  10. 2026-08-28 21:38 UTCEPSS rescore
  11. 2026-08-27 14:22 UTCEPSS rescore
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  18. 2026-08-19 17:01 UTCEPSS rescore
  19. 2026-08-18 23:31 UTCOSV refresh
  20. 2026-08-18 13:45 UTCEPSS rescore
  21. 2026-08-17 13:44 UTCEPSS rescore
  22. 2026-08-16 14:53 UTCEPSS rescore
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  24. 2026-08-15 01:27 UTCEPSS rescore
  25. 2026-08-13 21:57 UTCEPSS rescore
  26. 2026-08-12 13:48 UTCEPSS rescore
  27. 2026-08-11 13:38 UTCEPSS rescore
  28. 2026-08-09 13:44 UTCEPSS rescore
  29. 2026-08-08 16:34 UTCEPSS rescore
  30. 2026-08-07 16:24 UTCEPSS rescore
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  35. 2026-08-03 19:27 UTCOSV refresh
  36. 2026-08-03 10:33 UTCEPSS rescore
  37. 2026-08-02 02:24 UTCEPSS rescore
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  39. 2026-07-30 16:25 UTCEPSS rescore
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  42. 2026-07-26 14:52 UTCEPSS rescore
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  44. 2026-07-24 14:15 UTCEPSS rescore
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  46. 2026-07-23 14:16 UTCEPSS rescore
  47. 2026-07-23 14:16 UTCEPSS rescore
  48. 2026-07-23 02:10 UTCEG score recompute
  49. 2026-07-22 22:57 UTCEG score recompute
  50. 2026-07-22 14:06 UTCEPSS rescore
  51. 2026-07-22 14:06 UTCEPSS rescore
  52. 2026-07-21 15:22 UTCEPSS rescore
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  54. 2026-07-20 17:05 UTCEPSS rescore
  55. 2026-07-19 14:29 UTCEPSS rescore
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  58. 2026-07-18 10:03 UTCEPSS rescore
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  60. 2026-07-17 09:50 UTCOSV refresh
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  66. 2026-07-13 22:27 UTCEPSS rescore
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  73. 2026-07-09 19:07 UTCEPSS rescore
  74. 2026-07-08 15:12 UTCEPSS rescore
  75. 2026-07-07 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-29235?
CVE-2022-29235 is a medium vulnerability published on June 2, 2022. BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp…
When was CVE-2022-29235 disclosed?
CVE-2022-29235 was first published on June 2, 2022, 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-2022-29235 actively exploited?
CVE-2022-29235 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-29235?
CVE-2022-29235 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2022-29235?
A fix for CVE-2022-29235 is available — its CVE record says: "The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting."

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