CVE-2026-66404

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-08-10. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

DEEBOT PRO M1 and DEEBOT PRO K1VAC do not validate server certificates in MQTT communications. Operation logs and activity logs stored on the affected products may be retrieved.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
No patch confirmed yet.
generic

JVNVU#92804348: Multiple vulnerabilities in DEEBOT PRO M1, DEEBOT PRO K1VAC and ECOVACS PRO App

https://jvn.jp/en/vu/JVNVU92804348/
generic

DEEBOT PRO M1/K1VAC ファームウェア更新のお知らせ　　　（2026年3月31日更新） ｜ ロボット紹介−ハロハスロボティクス

https://robot.hellohas.co.jp/news/update_20260331/

Vendor Advisories for CVE-2026-66404(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 / 69× 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 105 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66404?
CVE-2026-66404 is a medium vulnerability published on August 10, 2026. DEEBOT PRO M1 and DEEBOT PRO K1VAC do not validate server certificates in MQTT communications. Operation logs and activity logs stored on the affected products may be retrieved.
When was CVE-2026-66404 disclosed?
CVE-2026-66404 was first published in the National Vulnerability Database on August 10, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66404 actively exploited?
CVE-2026-66404 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 97.5% of all scored CVEs.
What is the CVSS score of CVE-2026-66404?
CVE-2026-66404 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-66404?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66404, 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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