CVE-2026-11523

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH 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
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 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(high)
EPSS
37.1%
KEV
Not listed

Published

June 8, 2026

Last Modified

June 9, 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 24× in last 7d / 127× 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 127 total refreshes for this CVE.

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

Related CVEs(same CWE)

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 June 9, 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 37.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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