CVE-2026-66408: The root accounts of DEEBOT PRO M1 and DEEBOT PRO K1VAC are configured with weak…

3

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

ECOVACS ROBOTICS

DEEBOT PRO K1VAC and 1 more

CVSS base

4.6

Medium · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

No

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (ECOVACS ROBOTICS DEEBOT PRO K1VAC, ECOVACS ROBOTICS DEEBOT PRO M1).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
ECOVACS ROBOTICS	DEEBOT PRO K1VAC	< V1.7.821	Vulnerable	CVE Program (cve.org) e CISA ADP
ECOVACS ROBOTICS	DEEBOT PRO M1	< M1-1.7.27	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Physical

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
5.1	CVSS 4.0	Medium	—	—	vultures@jpcert.or.jp via NIST National Vulnerability Database
5.1	CVSS 4.0	Medium	—	—	jpcert via CVE Program (cve.org) e CISA ADP
4.6	CVSS 3.1	Medium	0.9	3.6	vultures@jpcert.or.jp via NIST National Vulnerability Database
4.6	CVSS 3.1	Medium	—	—	jpcert via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: vultures@jpcert.or.jp)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-1391

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.

endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

2026
Affected products added · ecovacs robotics/deebot pro m1, ecovacs robotics/deebot pro k1vac
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 4.6
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Aug 10, 2026 · jpcert

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

2 on the record

robot.hellohas.co.jp/news/update_20260331/
NIST National Vulnerability Database
jvn.jp/en/vu/JVNVU92804348/
NIST National Vulnerability Database

Elsewhere on this site

ECOVACS ROBOTICS
every CVE for this vendor

CWE-1391
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-66409 DEEBOT PRO M1 and DEEBOT PRO K1VAC are configured with weak passwords for their Wi-Fi… Aug 10, 2026
Medium CVE-2026-66411 DEEBOT PRO M1 and DEEBOT PRO K1VAC incorrectly implement authentication algorithm in… Aug 10, 2026
High CVE-2026-66403 DEEBOT PRO M1 and DEEBOT PRO K1VAC leave the web server for debugging purposes enabled… Aug 10, 2026
Medium CVE-2026-66404 Improper Certificate Validation in ECOVACS ROBOTICS DEEBOT PRO M1 Aug 10, 2026
High CVE-2026-66405 DEEBOT PRO M1 and DEEBOT PRO K1VAC leave the telnet servers enabled. The telnet service… Aug 10, 2026
Medium CVE-2026-66406 Improper Certificate Validation in ECOVACS ROBOTICS DEEBOT PRO M1 Aug 10, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-66408 is "The root accounts of DEEBOT PRO M1 and DEEBOT PRO K1VAC are configured with weak…", rated Medium. It affects DEEBOT PRO K1VAC (ECOVACS ROBOTICS); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.6 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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