CVE-2026-19683

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory published 2026-08-20. NVD baseline CVSS 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.4Exploit: None knownExposed services: Not assessed

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

A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path. 

Successful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
14th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

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-2026-19683(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 23× in last 7d / 97× 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 141 total refreshes for this CVE.

  1. 2026-10-05 09:42 UTCEG score recompute
  2. 2026-10-05 09:42 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 20:52 UTCGHSA enrichment
  5. 2026-10-04 05:36 UTCGHSA enrichment
  6. 2026-10-03 16:46 UTCEG score recompute
  7. 2026-10-03 16:46 UTCGHSA enrichment
  8. 2026-10-03 01:45 UTCEG score recompute
  9. 2026-10-03 01:45 UTCGHSA enrichment
  10. 2026-10-02 12:55 UTCGHSA enrichment
  11. 2026-10-01 22:44 UTCEG score recompute
  12. 2026-10-01 22:44 UTCGHSA enrichment
  13. 2026-10-01 19:49 UTCEPSS rescore
  14. 2026-10-01 09:52 UTCGHSA enrichment
  15. 2026-09-30 21:02 UTCEG score recompute
  16. 2026-09-30 21:02 UTCGHSA enrichment
  17. 2026-09-30 15:03 UTCEPSS rescore
  18. 2026-09-30 08:12 UTCEG score recompute
  19. 2026-09-30 08:12 UTCGHSA enrichment
  20. 2026-09-29 15:20 UTCEPSS rescore
  21. 2026-09-28 21:38 UTCEG score recompute
  22. 2026-09-28 21:38 UTCGHSA enrichment
  23. 2026-09-28 13:51 UTCEPSS rescore
  24. 2026-09-28 04:51 UTCGHSA enrichment
  25. 2026-09-27 15:56 UTCEG score recompute
Show 75 more
  1. 2026-09-27 15:55 UTCGHSA enrichment
  2. 2026-09-27 13:47 UTCEPSS rescore
  3. 2026-09-27 02:59 UTCEG score recompute
  4. 2026-09-27 02:59 UTCGHSA enrichment
  5. 2026-09-26 15:58 UTCEPSS rescore
  6. 2026-09-25 01:49 UTCEG score recompute
  7. 2026-09-25 01:49 UTCGHSA enrichment
  8. 2026-09-24 12:59 UTCGHSA enrichment
  9. 2026-09-24 00:08 UTCEG score recompute
  10. 2026-09-24 00:07 UTCGHSA enrichment
  11. 2026-09-23 11:17 UTCGHSA enrichment
  12. 2026-09-22 22:27 UTCEG score recompute
  13. 2026-09-22 22:26 UTCGHSA enrichment
  14. 2026-09-22 09:33 UTCEG score recompute
  15. 2026-09-22 09:33 UTCGHSA enrichment
  16. 2026-09-21 20:40 UTCGHSA enrichment
  17. 2026-09-21 07:49 UTCEG score recompute
  18. 2026-09-21 07:49 UTCGHSA enrichment
  19. 2026-09-20 18:14 UTCGHSA enrichment
  20. 2026-09-20 05:22 UTCEG score recompute
  21. 2026-09-20 05:22 UTCGHSA enrichment
  22. 2026-09-19 16:32 UTCEG score recompute
  23. 2026-09-19 16:32 UTCGHSA enrichment
  24. 2026-09-19 03:41 UTCEG score recompute
  25. 2026-09-19 03:41 UTCGHSA enrichment
  26. 2026-09-18 19:27 UTCEPSS rescore
  27. 2026-09-18 14:51 UTCGHSA enrichment
  28. 2026-09-18 02:01 UTCEG score recompute
  29. 2026-09-18 02:01 UTCGHSA enrichment
  30. 2026-09-17 13:10 UTCGHSA enrichment
  31. 2026-09-16 23:53 UTCEG score recompute
  32. 2026-09-16 23:53 UTCGHSA enrichment
  33. 2026-09-16 14:07 UTCEPSS rescore
  34. 2026-09-16 11:02 UTCEG score recompute
  35. 2026-09-16 11:02 UTCGHSA enrichment
  36. 2026-09-16 05:14 UTCEPSS rescore
  37. 2026-09-15 22:12 UTCGHSA enrichment
  38. 2026-09-15 09:21 UTCEG score recompute
  39. 2026-09-15 09:21 UTCGHSA enrichment
  40. 2026-09-14 20:30 UTCGHSA enrichment
  41. 2026-09-14 07:35 UTCGHSA enrichment
  42. 2026-09-13 18:45 UTCEG score recompute
  43. 2026-09-13 18:45 UTCGHSA enrichment
  44. 2026-09-13 16:46 UTCEPSS rescore
  45. 2026-09-13 05:54 UTCGHSA enrichment
  46. 2026-09-12 17:04 UTCEG score recompute
  47. 2026-09-12 17:04 UTCGHSA enrichment
  48. 2026-09-12 15:00 UTCEPSS rescore
  49. 2026-09-12 04:14 UTCGHSA enrichment
  50. 2026-09-11 15:24 UTCEG score recompute
  51. 2026-09-11 15:24 UTCGHSA enrichment
  52. 2026-09-11 14:52 UTCEPSS rescore
  53. 2026-09-11 09:36 UTCEPSS rescore
  54. 2026-09-11 02:33 UTCGHSA enrichment
  55. 2026-09-10 13:42 UTCEG score recompute
  56. 2026-09-10 13:42 UTCGHSA enrichment
  57. 2026-09-10 09:34 UTCEPSS rescore
  58. 2026-09-10 00:49 UTCGHSA enrichment
  59. 2026-09-09 09:43 UTCEG score recompute
  60. 2026-09-09 09:43 UTCGHSA enrichment
  61. 2026-09-08 22:00 UTCEPSS rescore
  62. 2026-09-08 20:53 UTCEG score recompute▲ 1.10
  63. 2026-09-08 20:52 UTCGHSA enrichment
  64. 2026-09-08 20:51 UTCNVD updateCVSS v3 → 7.4 · severity → HIGH
  65. 2026-09-07 20:44 UTCEG score recompute
  66. 2026-09-07 20:44 UTCGHSA enrichment
  67. 2026-09-07 16:01 UTCEPSS rescore
  68. 2026-09-06 20:52 UTCEG score recompute
  69. 2026-09-06 20:52 UTCGHSA enrichment
  70. 2026-09-06 13:47 UTCEPSS rescore
  71. 2026-09-05 20:59 UTCEG score recompute
  72. 2026-09-05 20:59 UTCGHSA enrichment
  73. 2026-09-04 21:07 UTCEG score recompute
  74. 2026-09-04 21:07 UTCGHSA enrichment
  75. 2026-09-04 05:06 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-19683?
CVE-2026-19683 is a high vulnerability published on August 20, 2026. A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and…
When was CVE-2026-19683 disclosed?
CVE-2026-19683 was first published 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-2026-19683 actively exploited?
CVE-2026-19683 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19683?
CVE-2026-19683 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-19683?
No fix for CVE-2026-19683 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-19683 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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