CVE-2026-51380

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-15. 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 weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

Buffer Overflow vulnerability in Tenda AC10 v3 (firmware V03.03.16.09) allows attackers to cause a permanent Denial of Service (DoS) or potentially execute remote code via the /cgi-bin/UploadCfg endpoint

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 16, 2026

Advisory Details (3)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

GitHub - snyi001/Tenda-AC10-v3: Buffer Overflow vulnerability in Tenda AC10 v3 (firmware V03.03.16.09) allows attackers to cause a permanent Denial of Service (DoS) or potentially execute remote code via the /cgi-bin/UploadCfg endpoint · GitHub

https://github.com/snyi001/Tenda-AC10-v3
generic

AC10 v3.0 Firmware - Tenda Global(English)

https://www.tendacn.com/material/show/104968
generic

CV/11.zip at main · snyi001/CV · GitHub

https://github.com/snyi001/CV/blob/main/11.zip

Vendor Advisories for CVE-2026-51380(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 37× in last 7d / 220× 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 276 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51380?
CVE-2026-51380 is a critical vulnerability published on July 15, 2026. Buffer Overflow vulnerability in Tenda AC10 v3 (firmware V03.03.16.09) allows attackers to cause a permanent Denial of Service (DoS) or potentially execute remote code via the /cgi-bin/UploadCfg endpoint
When was CVE-2026-51380 disclosed?
CVE-2026-51380 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51380 actively exploited?
CVE-2026-51380 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 49.6% of all scored CVEs.
What is the CVSS score of CVE-2026-51380?
CVE-2026-51380 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51380?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51380, 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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