CVE-2026-11523

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-08. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

June 8, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 8, 2026
No patch confirmed yet.
generic

IoT_vlu/reports/Tenda/formPortalAuth/formPortalAuth.md at main · Robots10/IoT_vlu · GitHub

https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formPortalAuth/formPortalAuth.md
generic

腾达(Tenda) 腾达中文网站 - 致力于建设值得信赖的好网络

https://www.tenda.com.cn/

Vendor Advisories for CVE-2026-11523(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 41× 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 232 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11523?
CVE-2026-11523 is a high vulnerability published on June 8, 2026. A flaw has been found in Tenda W20E 15.11.0.6. This issue affects the function formPortalAuth of the file /goform/PortalAuth of the component Web Management Interface. Executing a manipulation of the argument gotoUrl can lead to stack-based buffer overflow. The attack can be launched remotely. The…
When was CVE-2026-11523 disclosed?
CVE-2026-11523 was first published in the National Vulnerability Database on June 8, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11523 actively exploited?
CVE-2026-11523 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 60.9% of all scored CVEs.
What is the CVSS score of CVE-2026-11523?
CVE-2026-11523 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-11523?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11523, 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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