CVE-2026-9033

MEDIUMNVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

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, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
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: 0.3%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).

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
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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.
Exploitation0.3% × 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
0.3%
EPSS %ILE
18th
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

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

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

August 20, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 20, 2026
Fix referenced — no release confirmed yet.
Web page

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 13× in last 7d / 83× 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 99 of 160 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 61 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-12 14:47 UTCEG score recompute
  5. 2026-10-11 19:14 UTCEG score recompute
  6. 2026-10-11 16:31 UTCEG score recompute
  7. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  8. 2026-10-11 13:46 UTCEG score recompute
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  11. 2026-10-09 08:22 UTCEG score recompute
  12. 2026-10-09 08:22 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  13. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-08 05:17 UTCEG score recompute
  15. 2026-10-08 05:17 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-07 02:12 UTCEG score recompute
  18. 2026-10-07 02:12 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  19. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-06 03:24 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  21. 2026-10-06 03:23 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  22. 2026-10-06 03:21 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  23. 2026-10-06 03:21 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  24. 2026-10-06 03:20 UTCEG score recompute
  25. 2026-10-06 03:20 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
Show 74 more
  1. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-05 01:56 UTCEG score recompute
  3. 2026-10-05 01:56 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  4. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-10-04 03:34 UTCEG score recompute
  6. 2026-10-04 03:34 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  7. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  8. 2026-10-03 05:11 UTCEG score recompute
  9. 2026-10-03 05:11 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  10. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  11. 2026-10-02 06:49 UTCEG score recompute
  12. 2026-10-02 06:49 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  13. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-01 06:33 UTCEG score recompute
  15. 2026-10-01 06:33 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  16. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-09-30 08:12 UTCEG score recompute
  18. 2026-09-30 08:12 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  19. 2026-09-28 23:44 UTCEG score recompute
  20. 2026-09-28 23:43 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  21. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-09-28 01:21 UTCEG score recompute
  23. 2026-09-28 01:21 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  24. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-09-27 02:59 UTCEG score recompute
  26. 2026-09-27 02:59 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  27. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-09-24 19:18 UTCEG score recompute
  29. 2026-09-24 19:18 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  30. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  31. 2026-09-23 20:55 UTCEG score recompute
  32. 2026-09-23 20:55 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  33. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  34. 2026-09-22 22:33 UTCEG score recompute
  35. 2026-09-22 22:33 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  36. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  37. 2026-09-22 00:07 UTCEG score recompute
  38. 2026-09-22 00:07 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  39. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  40. 2026-09-21 01:44 UTCEG score recompute
  41. 2026-09-21 01:44 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  42. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  43. 2026-09-20 03:13 UTCEG score recompute
  44. 2026-09-20 03:13 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  45. 2026-09-19 04:51 UTCEG score recompute
  46. 2026-09-19 04:51 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  47. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  48. 2026-09-18 06:28 UTCEG score recompute
  49. 2026-09-18 06:28 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  50. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  51. 2026-09-17 08:06 UTCEG score recompute
  52. 2026-09-17 08:06 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  53. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  54. 2026-09-16 09:41 UTCEG score recompute
  55. 2026-09-16 09:41 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  56. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  57. 2026-09-15 09:39 UTCEG score recompute
  58. 2026-09-15 09:39 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  59. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  60. 2026-09-14 11:17 UTCEG score recompute
  61. 2026-09-14 11:17 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  62. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  63. 2026-09-13 12:55 UTCEG score recompute
  64. 2026-09-13 12:55 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  65. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  66. 2026-09-12 14:33 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  67. 2026-09-11 16:11 UTCEG score recompute
  68. 2026-09-11 16:11 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  69. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  70. 2026-09-11 09:38 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  71. 2026-09-10 17:37 UTCEG score recompute
  72. 2026-09-10 17:37 UTCGHSA enrichmentGHSA-fpm4-hq62-cqf6 · GitHub CVSS 4.3
  73. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  74. 2026-09-09 19:15 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-9033?
CVE-2026-9033 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-9033 published?
The CVE record for CVE-2026-9033 was published on August 20, 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 September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-9033 actively exploited?
CVE-2026-9033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-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?
A fix for CVE-2026-9033 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. The vendor advisories EchelonGraph has for CVE-2026-9033 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-9033

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