CVE-2026-51764

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-01. 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
9.8EG
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: None knownExposed: 0

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

Incorrect access control in the recvSlaveCloudCheckStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to overwrite cloud-result tracking files via sending a crafted MQTT message to the cs_broker component.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
48%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 3, 2026

Advisory Details (3)

Auto-updated Sep 24, 2026
No patch confirmed yet.
generic

TOTOLINK | Wi-Fi 7, Mesh, 5G & Enterprise Networking

https://www.totolink.net/
generic

CVE-Vendor-Coordination/TOTOLINK/README.md at main · ShengWu00/CVE-Vendor-Coordination · GitHub

https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
generic

CVE-Vendor-Coordination/TOTOLINK/README.md at main · ShengWu00/CVE-Vendor-Coordination · GitHub

https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md

Vendor Advisories for CVE-2026-51764(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 50× in last 7d / 170× 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 170 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-51764?
CVE-2026-51764 is a critical vulnerability published on September 1, 2026. Incorrect access control in the recvSlaveCloudCheckStatus function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to overwrite cloud-result tracking files via sending a crafted MQTT message to the csbroker component.
When was CVE-2026-51764 disclosed?
CVE-2026-51764 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51764 actively exploited?
CVE-2026-51764 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 51.6% of all scored CVEs.
What is the CVSS score of CVE-2026-51764?
CVE-2026-51764 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51764?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51764, 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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