CVE-2026-66405

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: 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 leave the telnet servers enabled. The telnet service may be leveraged to log in to the affected products.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
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-2026-66405(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 28× in last 7d / 47× 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. 2026-08-20 23:26 UTCEG score recompute
  2. 2026-08-20 23:26 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 11:12 UTCGHSA enrichment
  5. 2026-08-19 22:58 UTCEG score recompute
  6. 2026-08-19 22:58 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 10:42 UTCGHSA enrichment
  9. 2026-08-18 22:22 UTCEG score recompute
  10. 2026-08-18 22:22 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 10:08 UTCGHSA enrichment
  13. 2026-08-17 21:52 UTCEG score recompute
  14. 2026-08-17 21:52 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 09:36 UTCGHSA enrichment
  17. 2026-08-16 21:22 UTCEG score recompute
  18. 2026-08-16 21:22 UTCGHSA enrichment
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 09:07 UTCEG score recompute
  21. 2026-08-16 09:07 UTCGHSA enrichment
  22. 2026-08-15 20:53 UTCGHSA enrichment
  23. 2026-08-15 08:38 UTCEG score recompute
  24. 2026-08-15 08:38 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 22 more
  1. 2026-08-14 20:23 UTCGHSA enrichment
  2. 2026-08-14 08:09 UTCEG score recompute
  3. 2026-08-14 08:09 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 19:54 UTCGHSA enrichment
  6. 2026-08-13 07:39 UTCGHSA enrichment
  7. 2026-08-12 19:24 UTCEG score recompute
  8. 2026-08-12 19:24 UTCGHSA enrichment
  9. 2026-08-12 13:51 UTCEPSS rescore
  10. 2026-08-12 07:09 UTCGHSA enrichment
  11. 2026-08-11 18:54 UTCEG score recompute
  12. 2026-08-11 18:54 UTCGHSA enrichment
  13. 2026-08-11 06:39 UTCEG score recompute
  14. 2026-08-11 06:39 UTCGHSA enrichment
  15. 2026-08-11 00:00 UTCEPSS rescore
  16. 2026-08-10 18:25 UTCEG score recompute
  17. 2026-08-10 18:25 UTCGHSA enrichment
  18. 2026-08-10 18:16 UTCEG score recompute
  19. 2026-08-10 18:16 UTCGHSA enrichment
  20. 2026-08-10 09:20 UTCEG score recompute
  21. 2026-08-10 08:16 UTCEG score recompute
  22. 2026-08-10 08:16 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-66405?
CVE-2026-66405 is a high vulnerability published on August 10, 2026. DEEBOT PRO M1 and DEEBOT PRO K1VAC leave the telnet servers enabled. The telnet service may be leveraged to log in to the affected products.
When was CVE-2026-66405 disclosed?
CVE-2026-66405 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-2026-66405 actively exploited?
CVE-2026-66405 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 58.7% of all scored CVEs.
What is the CVSS score of CVE-2026-66405?
CVE-2026-66405 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-66405?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66405, 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-2026-66405

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