CVE-2026-67966

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

Tenda W20E V16.01.0.6(2782) /goform/telnet endpoint allows unauthenticated remote attackers to activate the Telnet daemon and obtain root shell access.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

GitHub - H0111mes/Tenda-W20E-Vulnerability-Disclosure · GitHub

https://github.com/H0111mes/Tenda-W20E-Vulnerability-Disclosure

Vendor Advisories for CVE-2026-67966(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 49× in last 7d / 210× 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 247 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67966?
CVE-2026-67966 is a critical vulnerability published on August 17, 2026. Tenda W20E V16.01.0.6(2782) /goform/telnet endpoint allows unauthenticated remote attackers to activate the Telnet daemon and obtain root shell access.
When was CVE-2026-67966 disclosed?
CVE-2026-67966 was first published in the National Vulnerability Database on August 17, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67966 actively exploited?
CVE-2026-67966 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 65.2% of all scored CVEs.
What is the CVSS score of CVE-2026-67966?
CVE-2026-67966 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67966?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67966, 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.

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