CVE-2026-9033

MEDIUMNVD 4.34.3
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-20. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An unauthenticated attacker with network access to the captive portal service of an affected device can terminate active captive portal sessions, including forcing logout of specific users or clearing all active sessions. Affected users must re-authenticate to regain access. 

Successful exploitation may allow termination of individual or all active captive portal sessions, causing temporary service disruption and requiring users to re-authenticate.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: Track

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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Security Advisory: Multiple Vulnerabilities in Omada Gateways (CVE-2026-9033, CVE-2026-19586, CVE-2026-19683) | TP-Link

https://www.tp-link.com/us/support/faq/5256/

Vendor Advisories for CVE-2026-9033(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 91× 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.

  1. 2026-09-21 01:44 UTCEG score recompute
  2. 2026-09-21 01:44 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 03:13 UTCEG score recompute
  5. 2026-09-20 03:13 UTCGHSA enrichment
  6. 2026-09-19 04:51 UTCEG score recompute
  7. 2026-09-19 04:51 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 06:28 UTCEG score recompute
  10. 2026-09-18 06:28 UTCGHSA enrichment
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-17 08:06 UTCEG score recompute
  13. 2026-09-17 08:06 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 09:41 UTCEG score recompute
  16. 2026-09-16 09:41 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 09:39 UTCEG score recompute
  19. 2026-09-15 09:39 UTCGHSA enrichment
  20. 2026-09-15 03:12 UTCEPSS rescore
  21. 2026-09-14 11:17 UTCEG score recompute
  22. 2026-09-14 11:17 UTCGHSA enrichment
  23. 2026-09-13 16:48 UTCEPSS rescore
  24. 2026-09-13 12:55 UTCEG score recompute
  25. 2026-09-13 12:55 UTCGHSA enrichment
Show 71 more
  1. 2026-09-12 15:02 UTCEPSS rescore
  2. 2026-09-12 14:33 UTCGHSA enrichment
  3. 2026-09-11 16:11 UTCEG score recompute
  4. 2026-09-11 16:11 UTCGHSA enrichment
  5. 2026-09-11 14:53 UTCEPSS rescore
  6. 2026-09-11 09:38 UTCEPSS rescore
  7. 2026-09-10 17:37 UTCEG score recompute
  8. 2026-09-10 17:37 UTCGHSA enrichment
  9. 2026-09-10 09:35 UTCEPSS rescore
  10. 2026-09-09 19:15 UTCEG score recompute
  11. 2026-09-09 19:15 UTCGHSA enrichment
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-08 20:52 UTCEG score recompute 1.70
  14. 2026-09-08 20:52 UTCGHSA enrichment
  15. 2026-09-08 20:51 UTCNVD updateCVSS v3 → 4.3
  16. 2026-09-08 02:16 UTCEG score recompute
  17. 2026-09-08 02:16 UTCGHSA enrichment
  18. 2026-09-07 03:53 UTCEG score recompute
  19. 2026-09-07 03:53 UTCGHSA enrichment
  20. 2026-09-06 13:48 UTCEPSS rescore
  21. 2026-09-06 05:08 UTCEG score recompute
  22. 2026-09-06 05:08 UTCGHSA enrichment
  23. 2026-09-05 15:31 UTCEPSS rescore
  24. 2026-09-05 06:45 UTCEG score recompute
  25. 2026-09-05 06:45 UTCGHSA enrichment
  26. 2026-09-04 08:11 UTCEG score recompute
  27. 2026-09-04 08:10 UTCGHSA enrichment
  28. 2026-09-04 05:07 UTCEPSS rescore
  29. 2026-09-03 09:46 UTCEG score recompute
  30. 2026-09-03 09:46 UTCGHSA enrichment
  31. 2026-09-02 14:12 UTCEPSS rescore
  32. 2026-09-02 11:23 UTCEG score recompute
  33. 2026-09-02 11:23 UTCGHSA enrichment
  34. 2026-09-01 13:54 UTCEPSS rescore
  35. 2026-09-01 12:56 UTCEG score recompute
  36. 2026-09-01 12:55 UTCGHSA enrichment
  37. 2026-09-01 04:40 UTCEPSS rescore
  38. 2026-08-31 14:34 UTCEG score recompute
  39. 2026-08-31 14:34 UTCGHSA enrichment
  40. 2026-08-30 19:18 UTCEPSS rescore
  41. 2026-08-30 16:04 UTCEG score recompute
  42. 2026-08-30 16:04 UTCGHSA enrichment
  43. 2026-08-30 01:22 UTCEPSS rescore
  44. 2026-08-29 17:42 UTCEG score recompute
  45. 2026-08-29 17:42 UTCGHSA enrichment
  46. 2026-08-28 21:42 UTCEPSS rescore
  47. 2026-08-28 19:19 UTCGHSA enrichment
  48. 2026-08-28 06:15 UTCEG score recompute
  49. 2026-08-28 06:14 UTCGHSA enrichment
  50. 2026-08-27 14:25 UTCEPSS rescore
  51. 2026-08-27 07:52 UTCEG score recompute
  52. 2026-08-27 07:52 UTCGHSA enrichment
  53. 2026-08-26 14:47 UTCEPSS rescore
  54. 2026-08-26 09:30 UTCEG score recompute
  55. 2026-08-26 09:30 UTCGHSA enrichment
  56. 2026-08-25 13:49 UTCEPSS rescore
  57. 2026-08-25 11:08 UTCEG score recompute
  58. 2026-08-25 11:08 UTCGHSA enrichment
  59. 2026-08-24 14:18 UTCEPSS rescore
  60. 2026-08-24 12:46 UTCEG score recompute
  61. 2026-08-24 12:46 UTCGHSA enrichment
  62. 2026-08-23 14:24 UTCEG score recompute
  63. 2026-08-23 14:24 UTCGHSA enrichment
  64. 2026-08-23 00:19 UTCEPSS rescore
  65. 2026-08-22 16:02 UTCEG score recompute
  66. 2026-08-22 16:02 UTCGHSA enrichment
  67. 2026-08-21 23:49 UTCEPSS rescore
  68. 2026-08-21 17:40 UTCGHSA enrichment
  69. 2026-08-20 19:18 UTCEG score recompute
  70. 2026-08-20 18:52 UTCEG score recompute
  71. 2026-08-20 18:51 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-9033?
CVE-2026-9033 is a medium vulnerability published on August 20, 2026. An unauthenticated attacker with network access to the captive portal service of an affected device can terminate active captive portal sessions, including forcing logout of specific users or clearing all active sessions. Affected users must re-authenticate to regain access. Successful exploitation…
When was CVE-2026-9033 disclosed?
CVE-2026-9033 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9033 actively exploited?
CVE-2026-9033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 90.4% of all scored CVEs.
What is the CVSS score of CVE-2026-9033?
CVE-2026-9033 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-9033?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9033, 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-2026-9033

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