CVE-2026-12806

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-21. 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: 1%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 vulnerability has been found in Edimax BR-6478AC V2 1.23. The impacted element is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey of the component POST Request Handler. The manipulation of the argument selSSID leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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
1%
EPSS %ILE
53%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 23, 2026

Advisory Details (1)

Auto-updated Jun 21, 2026
No patch confirmed yet.
generic

Notion

https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formWlSiteSurvey-34b53a41781f80669c10df409a0851d4?source=copy_link

Vendor Advisories for CVE-2026-12806(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 15× in last 7d / 76× 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.

  1. 2026-07-28 06:05 UTCGHSA enrichment
  2. 2026-07-27 18:20 UTCEG score recompute
  3. 2026-07-27 18:20 UTCGHSA enrichment
  4. 2026-07-27 14:13 UTCEPSS rescore
  5. 2026-07-27 06:36 UTCGHSA enrichment
  6. 2026-07-26 16:18 UTCEG score recompute
  7. 2026-07-26 16:17 UTCGHSA enrichment
  8. 2026-07-26 14:54 UTCEPSS rescore
  9. 2026-07-26 14:54 UTCEPSS rescore
  10. 2026-07-25 14:17 UTCEPSS rescore
  11. 2026-07-24 14:17 UTCEPSS rescore
  12. 2026-07-23 14:18 UTCEPSS rescore
  13. 2026-07-23 03:05 UTCEG score recompute
  14. 2026-07-22 14:08 UTCEPSS rescore
  15. 2026-07-21 15:24 UTCEPSS rescore
  16. 2026-07-20 17:08 UTCEPSS rescore
  17. 2026-07-19 14:30 UTCEPSS rescore
  18. 2026-07-19 02:28 UTCEPSS rescore
  19. 2026-07-18 10:04 UTCEPSS rescore
  20. 2026-07-16 20:19 UTCGHSA enrichment
  21. 2026-07-16 17:02 UTCEPSS rescore
  22. 2026-07-16 05:56 UTCGHSA enrichment
  23. 2026-07-15 18:11 UTCGHSA enrichment
  24. 2026-07-15 16:57 UTCEPSS rescore
  25. 2026-07-15 06:22 UTCGHSA enrichment
Show 75 more
  1. 2026-07-15 02:00 UTCEPSS rescore
  2. 2026-07-14 16:25 UTCGHSA enrichment
  3. 2026-07-14 04:42 UTCGHSA enrichment
  4. 2026-07-13 22:30 UTCEPSS rescore
  5. 2026-07-13 16:57 UTCGHSA enrichment
  6. 2026-07-13 06:12 UTCEPSS rescore
  7. 2026-07-13 04:45 UTCGHSA enrichment
  8. 2026-07-12 17:01 UTCGHSA enrichment
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-12 05:17 UTCGHSA enrichment
  11. 2026-07-11 17:32 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-11 05:48 UTCGHSA enrichment
  14. 2026-07-10 18:04 UTCGHSA enrichment
  15. 2026-07-10 06:20 UTCGHSA enrichment
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-09 18:37 UTCGHSA enrichment
  18. 2026-07-09 06:54 UTCGHSA enrichment
  19. 2026-07-08 19:07 UTCGHSA enrichment
  20. 2026-07-08 15:15 UTCEPSS rescore
  21. 2026-07-08 15:15 UTCEPSS rescore
  22. 2026-07-08 07:23 UTCGHSA enrichment
  23. 2026-07-07 19:40 UTCGHSA enrichment
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-07 06:58 UTCGHSA enrichment
  26. 2026-07-06 18:56 UTCGHSA enrichment
  27. 2026-07-06 16:27 UTCEPSS rescore
  28. 2026-07-06 06:40 UTCGHSA enrichment
  29. 2026-07-06 02:23 UTCEPSS rescore
  30. 2026-07-05 18:57 UTCGHSA enrichment
  31. 2026-07-05 07:13 UTCGHSA enrichment
  32. 2026-07-05 02:30 UTCEPSS rescore
  33. 2026-07-05 02:30 UTCEPSS rescore
  34. 2026-07-04 19:22 UTCGHSA enrichment
  35. 2026-07-04 07:38 UTCGHSA enrichment
  36. 2026-07-04 06:31 UTCEPSS rescore
  37. 2026-07-03 19:06 UTCGHSA enrichment
  38. 2026-07-03 07:23 UTCGHSA enrichment
  39. 2026-07-02 19:40 UTCGHSA enrichment
  40. 2026-07-02 07:56 UTCGHSA enrichment
  41. 2026-07-01 20:13 UTCGHSA enrichment
  42. 2026-07-01 15:06 UTCEPSS rescore
  43. 2026-07-01 15:06 UTCEPSS rescore
  44. 2026-07-01 08:28 UTCGHSA enrichment
  45. 2026-06-30 23:22 UTCEPSS rescore
  46. 2026-06-30 20:41 UTCGHSA enrichment
  47. 2026-06-30 08:54 UTCGHSA enrichment
  48. 2026-06-29 21:11 UTCGHSA enrichment
  49. 2026-06-29 14:06 UTCEPSS rescore
  50. 2026-06-29 09:28 UTCGHSA enrichment
  51. 2026-06-28 21:45 UTCGHSA enrichment
  52. 2026-06-28 14:07 UTCEPSS rescore
  53. 2026-06-28 10:01 UTCGHSA enrichment
  54. 2026-06-28 04:56 UTCEPSS rescore
  55. 2026-06-28 04:56 UTCEPSS rescore
  56. 2026-06-27 22:18 UTCGHSA enrichment
  57. 2026-06-27 10:35 UTCGHSA enrichment
  58. 2026-06-27 03:08 UTCEPSS rescore
  59. 2026-06-26 22:52 UTCGHSA enrichment
  60. 2026-06-26 11:09 UTCGHSA enrichment
  61. 2026-06-25 18:49 UTCGHSA enrichment
  62. 2026-06-25 13:49 UTCEPSS rescore
  63. 2026-06-25 07:05 UTCGHSA enrichment
  64. 2026-06-24 19:22 UTCGHSA enrichment
  65. 2026-06-24 14:05 UTCEPSS rescore
  66. 2026-06-24 07:39 UTCGHSA enrichment
  67. 2026-06-23 21:32 UTCEPSS rescore
  68. 2026-06-23 19:49 UTCGHSA enrichment
  69. 2026-06-23 15:31 UTCNVD updateCVSS v4 → 7.4
  70. 2026-06-23 14:35 UTCMITRE cvelistV5CVSS v4 → 8.7
  71. 2026-06-23 08:06 UTCGHSA enrichment
  72. 2026-06-22 20:17 UTCGHSA enrichment
  73. 2026-06-22 08:31 UTCGHSA enrichment
  74. 2026-06-21 20:46 UTCEG score recompute
  75. 2026-06-21 20:44 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12806?
CVE-2026-12806 is a high vulnerability published on June 21, 2026. A vulnerability has been found in Edimax BR-6478AC V2 1.23. The impacted element is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey of the component POST Request Handler. The manipulation of the argument selSSID leads to buffer overflow. It is possible to initiate the attack…
When was CVE-2026-12806 disclosed?
CVE-2026-12806 was first published in the National Vulnerability Database on June 21, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12806 actively exploited?
CVE-2026-12806 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 47.0% of all scored CVEs.
What is the CVSS score of CVE-2026-12806?
CVE-2026-12806 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-12806?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12806, 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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