CVE-2026-11503

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-08. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vuldb, epss, ghsa
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 security vulnerability has been detected in Tenda CX12L 16.03.53.12. The affected element is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set of the component Wi-Fi Configuration Endpoint. Such manipulation of the argument ssid leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly 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 8, 2026

Advisory Details (2)

Auto-updated Jun 8, 2026
🔬 Proof of concept available. No patch confirmed yet.
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/
generic🟡 PoC Available

Tenda Router CX12L V16.03.53.12 - Stack-based Buffer Overflow in `/goform/fast_setting_wifi_set` · Issue #1 · cve-a/moist · GitHub

https://github.com/cve-a/moist/issues/1

Vendor Advisories for CVE-2026-11503(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 26× in last 7d / 137× 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 137 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 17:57 UTCEG score recompute
  4. 2026-07-05 17:57 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-04 15:32 UTCEG score recompute
  8. 2026-07-04 15:32 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 21:34 UTCEG score recompute
  11. 2026-07-03 21:33 UTCGHSA enrichment
  12. 2026-07-03 09:30 UTCEG score recompute
  13. 2026-07-03 09:30 UTCGHSA enrichment
  14. 2026-07-02 19:28 UTCEG score recompute
  15. 2026-07-02 19:28 UTCGHSA enrichment
  16. 2026-07-02 07:24 UTCEG score recompute
  17. 2026-07-02 07:24 UTCGHSA enrichment
  18. 2026-07-01 19:15 UTCEG score recompute
  19. 2026-07-01 19:15 UTCGHSA enrichment
  20. 2026-07-01 15:06 UTCEPSS rescore
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-07-01 07:01 UTCEG score recompute
  23. 2026-07-01 07:00 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 16:39 UTCEG score recompute
Show 75 more
  1. 2026-06-30 16:39 UTCGHSA enrichment
  2. 2026-06-30 01:25 UTCEG score recompute
  3. 2026-06-30 01:25 UTCGHSA enrichment
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-29 13:21 UTCEG score recompute
  6. 2026-06-29 13:21 UTCGHSA enrichment
  7. 2026-06-29 01:17 UTCEG score recompute
  8. 2026-06-29 01:17 UTCGHSA enrichment
  9. 2026-06-28 14:07 UTCEPSS rescore
  10. 2026-06-28 13:13 UTCEG score recompute
  11. 2026-06-28 13:13 UTCGHSA enrichment
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-28 04:56 UTCEPSS rescore
  14. 2026-06-28 01:10 UTCEG score recompute
  15. 2026-06-28 01:10 UTCGHSA enrichment
  16. 2026-06-27 13:06 UTCEG score recompute
  17. 2026-06-27 13:06 UTCGHSA enrichment
  18. 2026-06-27 03:08 UTCEPSS rescore
  19. 2026-06-27 00:58 UTCEG score recompute
  20. 2026-06-27 00:58 UTCGHSA enrichment
  21. 2026-06-26 12:52 UTCEG score recompute
  22. 2026-06-26 12:52 UTCGHSA enrichment
  23. 2026-06-25 21:31 UTCEG score recompute
  24. 2026-06-25 21:31 UTCGHSA enrichment
  25. 2026-06-25 13:49 UTCEPSS rescore
  26. 2026-06-25 09:24 UTCEG score recompute
  27. 2026-06-25 09:23 UTCGHSA enrichment
  28. 2026-06-24 21:19 UTCEG score recompute
  29. 2026-06-24 21:19 UTCGHSA enrichment
  30. 2026-06-24 14:05 UTCEPSS rescore
  31. 2026-06-24 08:18 UTCEG score recompute
  32. 2026-06-24 08:18 UTCGHSA enrichment
  33. 2026-06-23 21:32 UTCEPSS rescore
  34. 2026-06-23 16:19 UTCEG score recompute
  35. 2026-06-23 16:19 UTCGHSA enrichment
  36. 2026-06-23 02:26 UTCEG score recompute
  37. 2026-06-23 02:26 UTCGHSA enrichment
  38. 2026-06-22 14:25 UTCEPSS rescore
  39. 2026-06-22 14:25 UTCEPSS rescore
  40. 2026-06-22 14:22 UTCEG score recompute
  41. 2026-06-22 14:22 UTCGHSA enrichment
  42. 2026-06-21 20:26 UTCEG score recompute
  43. 2026-06-21 20:26 UTCGHSA enrichment
  44. 2026-06-21 14:56 UTCEPSS rescore
  45. 2026-06-21 14:56 UTCEPSS rescore
  46. 2026-06-21 05:21 UTCEG score recompute
  47. 2026-06-21 05:21 UTCGHSA enrichment
  48. 2026-06-21 01:59 UTCEPSS rescore
  49. 2026-06-21 01:59 UTCEPSS rescore
  50. 2026-06-20 15:53 UTCEG score recompute
  51. 2026-06-20 15:52 UTCGHSA enrichment
  52. 2026-06-20 03:07 UTCEG score recompute
  53. 2026-06-20 03:06 UTCGHSA enrichment
  54. 2026-06-19 19:25 UTCEPSS rescore
  55. 2026-06-19 12:14 UTCEG score recompute
  56. 2026-06-19 12:14 UTCGHSA enrichment
  57. 2026-06-18 23:50 UTCEG score recompute
  58. 2026-06-18 23:50 UTCGHSA enrichment
  59. 2026-06-18 17:52 UTCEPSS rescore
  60. 2026-06-18 11:47 UTCEG score recompute
  61. 2026-06-18 11:47 UTCGHSA enrichment
  62. 2026-06-17 23:29 UTCEG score recompute
  63. 2026-06-17 23:29 UTCGHSA enrichment
  64. 2026-06-17 17:53 UTCEPSS rescore
  65. 2026-06-17 11:15 UTCEG score recompute
  66. 2026-06-17 11:15 UTCGHSA enrichment
  67. 2026-06-16 23:12 UTCEG score recompute
  68. 2026-06-16 23:12 UTCGHSA enrichment
  69. 2026-06-16 17:52 UTCEPSS rescore
  70. 2026-06-16 11:08 UTCEG score recompute
  71. 2026-06-16 11:07 UTCGHSA enrichment
  72. 2026-06-15 23:04 UTCEG score recompute
  73. 2026-06-15 23:04 UTCGHSA enrichment
  74. 2026-06-15 17:48 UTCEPSS rescore
  75. 2026-06-15 10:59 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-11503?
CVE-2026-11503 is a high vulnerability published on June 8, 2026. A security vulnerability has been detected in Tenda CX12L 16.03.53.12. The affected element is the function formfastsettingwifiset of the file /goform/fastsettingwifi_set of the component Wi-Fi Configuration Endpoint. Such manipulation of the argument ssid leads to stack-based buffer overflow. The…
When was CVE-2026-11503 disclosed?
CVE-2026-11503 was first published in the National Vulnerability Database on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11503 actively exploited?
CVE-2026-11503 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-2026-11503?
CVE-2026-11503 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-11503?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11503, 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.

Dependency Blast Radius

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