CVE-2026-33716

CRITICALPre-NVD 9.49.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-25. A secondary CVSS source baseline 9.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-14502 (ENISA EUVD) · GHSA-9hv9-gvwm-95f2 (GitHub Security Advisories)Source: ENISA EUVD

9.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.4Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns {"error": false}, completely bypassing authentication. This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence. Commit 388fcd57dbd16f6cb3ebcdf1d08cf2b929941128 contains a patch.

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
73
EG Risk 73/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity94% × 45%
Impact severity (EG Severity): CVSS 9.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
38th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.4): severity, escalated by confirmed exploitation. This CVE's 9.4 is its impact severity (EG Severity), not escalated.

EG Severity
9.4 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 23, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-9hv9-gvwm-95f2
GitHub commit Patch Available

commit 388fcd57dbd1 (WWBN/AVideo)

Patch available: WWBN/AVideo 29.0 (contains commit 388fcd57dbd1)

https://github.com/WWBN/AVideo/commit/388fcd57dbd16f6cb3ebcdf1d08cf2b929941128

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
composerwwbn/avideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
wwbn/avideo10.4 ... 26.0 (17 versions)
  • every version through 26.0: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 69× 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 98 of 174 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 76 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 08:17 UTCEG score recompute
  2. 2026-10-30 08:17 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  3. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  4. 2026-10-29 06:41 UTCEG score recompute
  5. 2026-10-29 06:41 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  6. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-10-28 05:01 UTCEG score recompute
  8. 2026-10-28 05:01 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  9. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  10. 2026-10-27 03:25 UTCEG score recompute
  11. 2026-10-27 03:24 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  12. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  13. 2026-10-25 21:42 UTCEG score recompute
  14. 2026-10-25 21:42 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  15. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  16. 2026-10-25 14:34 UTCEG score recompute
  17. 2026-10-24 19:49 UTCEG score recompute
  18. 2026-10-24 19:49 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  19. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-10-23 18:13 UTCEG score recompute
  21. 2026-10-23 18:13 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  22. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-10-22 16:35 UTCEG score recompute
  24. 2026-10-22 16:35 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  25. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
Show 73 more
  1. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-21 14:56 UTCEG score recompute
  3. 2026-10-21 14:56 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  4. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-10-20 13:19 UTCEG score recompute
  6. 2026-10-20 13:19 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  7. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-10-19 11:40 UTCEG score recompute
  9. 2026-10-19 11:40 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  10. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-10-18 09:33 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  12. 2026-10-18 03:46 UTCEG score recompute
  13. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-10-17 03:22 UTCEG score recompute
  15. 2026-10-17 03:22 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  16. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-16 01:45 UTCEG score recompute
  18. 2026-10-16 01:45 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  19. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-10-14 21:16 UTCEG score recompute
  21. 2026-10-14 21:16 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  22. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-10-13 17:13 UTCEG score recompute
  24. 2026-10-13 17:12 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  25. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  26. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  27. 2026-10-12 15:34 UTCEG score recompute
  28. 2026-10-12 15:34 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  29. 2026-10-12 08:24 UTCGHSA enrichmentGHSA-9hv9-gvwm-95f2 · GitHub severity CRITICAL · GitHub CVSS 9.4
  30. 2026-10-11 19:55 UTCEG score recompute
  31. 2026-10-11 17:08 UTCEG score recompute
  32. 2026-10-11 14:35 UTCEG score recompute
  33. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  34. 2026-10-11 07:25 UTCOSV refresh
  35. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  36. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  37. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  38. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  39. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  40. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  41. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  42. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  43. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  44. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  45. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  46. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  47. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  48. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  49. 2026-09-21 19:49 UTCOSV refresh
  50. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  51. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  52. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  53. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  54. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  55. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  56. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  57. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  58. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  59. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  60. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  61. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  62. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  63. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  64. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  65. 2026-09-02 16:08 UTCOSV refresh
  66. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  67. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  68. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  69. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  70. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  71. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  72. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  73. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile

Frequently asked(5)

What is CVE-2026-33716?
CVE-2026-33716 is a critical-severity vulnerability; its CVE record was published on March 23, 2026. WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An…
When was the CVE record for CVE-2026-33716 published?
The CVE record for CVE-2026-33716 was published on March 23, 2026. 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 June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-33716 actively exploited?
CVE-2026-33716 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33716?
CVE-2026-33716 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-33716?
A fix for CVE-2026-33716 is available: update to the fixed version the vendor names in its advisory.

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