CVE-2026-51846

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-19. 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 week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

In Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can lead to remote arbitrary code execution.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
42.6%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

CVE ID Request (Tenda AC7 – AdvSetMacMtuWan wanSpeed Stack Overflow) – 云上KDEV

https://www.kdev.site/cve-request_005/

Vendor Advisories for CVE-2026-51846(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 83× in last 7d / 151× 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 151 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-51846?
CVE-2026-51846 is a critical vulnerability published on June 19, 2026. In Tenda AC7 v15.03.06.44, the wanSpeed parameter of the route /goform/AdvSetMacMtuWan has a stack buffer overflow vulnerability that can lead to remote arbitrary code execution.
When was CVE-2026-51846 disclosed?
CVE-2026-51846 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51846 actively exploited?
CVE-2026-51846 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-51846?
CVE-2026-51846 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51846?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51846, 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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