CVE-2022-23490

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.5% (37th 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
4.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 4.3Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. This issue affects meetings with polls, where the attacker is a meeting participant. Subscribing to the current-poll collection does not update the client UI, but does give the attacker access to the contents of the collection, which include the individual poll responses. This issue is patched in version 2.4.0. There are no workarounds.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
20
EG Risk 20/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.5%
EPSS %ILE
37th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

Published

December 16, 2022

Last Modified

November 21, 2024

References (2)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 24× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 90 of 165 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 10 repeat rows among the latest 100 are merged into the row they repeat. The 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 13:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  2. 2026-10-10 19:56 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  3. 2026-10-09 20:04 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  4. 2026-10-08 16:40 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  5. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  6. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  7. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  8. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  9. 2026-10-03 14:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  10. 2026-09-30 15:50 UTCEG score recompute
  11. 2026-09-30 15:00 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  12. 2026-09-29 15:15 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  13. 2026-09-28 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  14. 2026-09-27 13:41 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  15. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-09-24 02:07 UTCOSV refresh
  18. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  19. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  20. 2026-09-17 19:23 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  21. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  22. 2026-09-15 03:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-09-13 16:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-09-12 14:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-09-11 14:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 65 more
  1. 2026-09-11 09:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-09-07 15:58 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-09-04 20:24 UTCOSV refresh
  7. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-08-30 19:14 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-08-24 14:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-08-20 22:52 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-08-18 07:34 UTCOSV refresh
  23. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-08-16 02:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  26. 2026-08-15 01:27 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-08-13 21:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  29. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  30. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  31. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  32. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  33. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  34. 2026-08-04 10:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  35. 2026-08-03 10:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  36. 2026-08-03 02:57 UTCOSV refresh
  37. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  38. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  39. 2026-07-30 16:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  40. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  41. 2026-07-28 15:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  42. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  43. 2026-07-25 14:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  44. 2026-07-24 14:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  45. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  46. 2026-07-23 02:08 UTCEG score recompute
  47. 2026-07-22 22:55 UTCEG score recompute
  48. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  49. 2026-07-21 15:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  50. 2026-07-20 17:05 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  51. 2026-07-19 14:29 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  52. 2026-07-19 02:27 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  53. 2026-07-18 10:02 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  54. 2026-07-16 17:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  55. 2026-07-16 12:19 UTCOSV refresh
  56. 2026-07-15 16:56 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  57. 2026-07-15 01:58 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  58. 2026-07-13 22:27 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  59. 2026-07-13 06:11 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  60. 2026-07-12 05:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  61. 2026-07-11 08:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  62. 2026-07-09 19:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  63. 2026-07-08 15:12 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  64. 2026-07-07 13:44 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  65. 2026-07-06 16:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile

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Frequently asked(5)

What is CVE-2022-23490?
CVE-2022-23490 is a medium-severity vulnerability; its CVE record was published on December 16, 2022. BigBlueButton is an open source web conferencing system. Versions prior to 2.4.0 expose sensitive information to Unauthorized Actors. This issue affects meetings with polls, where the attacker is a meeting participant. Subscribing to the current-poll collection does not update the client UI, but…
When was the CVE record for CVE-2022-23490 published?
The CVE record for CVE-2022-23490 was published on December 16, 2022. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2022-23490 actively exploited?
CVE-2022-23490 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-23490?
CVE-2022-23490 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2022-23490?
A fix for CVE-2022-23490 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

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