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VulnerabilityPublished

CVE-2026-66404: ECOVACS ROBOTICS DEEBOT PRO M1 · Improper Certificate Validation

Affects ECOVACS ROBOTICS DEEBOT PRO M1Source CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to M1-1.7.27 when convenient.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in M1-1.7.27, V1.7.821
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade DEEBOT PRO to M1-1.7.27 (M1) or V1.7.821 (K1VAC).

Affected software

ProductAffectedFixed in
ECOVACS ROBOTICSDEEBOT PRO M1Affected
  • =0
Fixed in
  • M1-1.7.27
ECOVACS ROBOTICSDEEBOT PRO K1VACAffected
  • <1.7.821
Fixed in
  • V1.7.821

AI-suggested

If you cannot patch yet, users should be cautious about network environments where these devices operate and consider limiting exposure to untrusted networks.

Description

The ECOVACS ROBOTICS DEEBOT PRO M1 and DEEBOT PRO K1VAC devices do not validate server certificates during MQTT communications. This improper certificate validation could allow an attacker to retrieve operation and activity logs stored on the affected products. The vulnerability has a CVSS score of 6.5, indicating a medium severity level.

References

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