CVE-2026-51844

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-19. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the cloneType parameter.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

June 19, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

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

https://www.kdev.site/cve-request_006/

Vendor Advisories for CVE-2026-51844(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 17× in last 7d / 156× 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 184 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51844?
CVE-2026-51844 is a critical vulnerability published on June 19, 2026. Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the cloneType parameter.
When was CVE-2026-51844 disclosed?
CVE-2026-51844 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51844 actively exploited?
CVE-2026-51844 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 64.1% of all scored CVEs.
What is the CVSS score of CVE-2026-51844?
CVE-2026-51844 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-51844?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51844, 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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