CVE-2026-66407

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: 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 improperly implement authentication in WebSocket communication. The WebSocket private key may be retrieved through analyzing the traffic data via a man-in-the-middle attack, and communication contents may be altered.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 10, 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-2026-66407(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 27× in last 7d / 48× 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.

  1. 2026-08-21 07:50 UTCEG score recompute
  2. 2026-08-21 07:50 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 19:46 UTCGHSA enrichment
  5. 2026-08-20 07:42 UTCGHSA enrichment
  6. 2026-08-19 19:39 UTCEG score recompute
  7. 2026-08-19 19:39 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 07:34 UTCGHSA enrichment
  10. 2026-08-18 19:31 UTCEG score recompute
  11. 2026-08-18 19:31 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 07:27 UTCGHSA enrichment
  14. 2026-08-17 19:23 UTCEG score recompute
  15. 2026-08-17 19:23 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 07:14 UTCGHSA enrichment
  18. 2026-08-16 19:11 UTCEG score recompute
  19. 2026-08-16 19:11 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 07:07 UTCEG score recompute
  22. 2026-08-16 07:07 UTCGHSA enrichment
  23. 2026-08-15 19:04 UTCGHSA enrichment
  24. 2026-08-15 07:00 UTCEG score recompute
  25. 2026-08-15 07:00 UTCGHSA enrichment
Show 23 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 18:56 UTCGHSA enrichment
  3. 2026-08-14 06:51 UTCEG score recompute
  4. 2026-08-14 06:51 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 18:47 UTCGHSA enrichment
  7. 2026-08-13 06:43 UTCGHSA enrichment
  8. 2026-08-12 18:40 UTCEG score recompute
  9. 2026-08-12 18:40 UTCGHSA enrichment
  10. 2026-08-12 13:51 UTCEPSS rescore
  11. 2026-08-12 06:36 UTCGHSA enrichment
  12. 2026-08-11 18:32 UTCEG score recompute
  13. 2026-08-11 18:32 UTCGHSA enrichment
  14. 2026-08-11 06:29 UTCEG score recompute
  15. 2026-08-11 06:28 UTCGHSA enrichment
  16. 2026-08-11 00:00 UTCEPSS rescore
  17. 2026-08-10 18:25 UTCEG score recompute
  18. 2026-08-10 18:25 UTCGHSA enrichment
  19. 2026-08-10 18:15 UTCEG score recompute
  20. 2026-08-10 18:15 UTCGHSA enrichment
  21. 2026-08-10 09:20 UTCEG score recompute
  22. 2026-08-10 08:16 UTCEG score recompute
  23. 2026-08-10 08:16 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-66407?
CVE-2026-66407 is a high vulnerability published on August 10, 2026. DEEBOT PRO M1 and DEEBOT PRO K1VAC improperly implement authentication in WebSocket communication. The WebSocket private key may be retrieved through analyzing the traffic data via a man-in-the-middle attack, and communication contents may be altered.
When was CVE-2026-66407 disclosed?
CVE-2026-66407 was first published in the National Vulnerability Database on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66407 actively exploited?
CVE-2026-66407 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 74.0% of all scored CVEs.
What is the CVSS score of CVE-2026-66407?
CVE-2026-66407 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-66407?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66407, 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

Explore the affected products and dependency analysis for CVE-2026-66407

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