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CVE-2026-66404

Quick assessment

Affected

ECOVACS ROBOTICS DEEBOT PRO M1

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hellohas Robotics DEEBOT PRO M1是日本Hellohas Robotics公司的一款智能家居清洁机器人。 Hellohas Robotics DEEBOT PRO M1 M1-1.7.27之前版本和DEEBOT PRO K1VAC V1.7.821之前版本存在加密问题漏洞，该漏洞源于MQTT通信中未验证服务器证书，可能导致检索受影响产品存储的操作日志和活动日志。

CVSS 6.5 · Medium EPSS 0.20% · P10 Updated Aug 11, 2026

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 2

Vendor	Product	Version Range	Status
ECOVACS ROBOTICS	DEEBOT PRO K1VAC	`< V1.7.821`	affected
ECOVACS ROBOTICS	DEEBOT PRO M1	`< M1-1.7.27`	affected

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I. Basic Information for CVE-2026-66404

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

证书验证不恰当

Source: CVE Program / CVE List V5

Vulnerability Title

Hellohas Robotics DEEBOT PRO M1 加密问题漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
ECOVACS ROBOTICS	DEEBOT PRO M1	0 ~ M1-1.7.27	-
ECOVACS ROBOTICS	DEEBOT PRO K1VAC	0 ~ V1.7.821	-

II. Public POCs for CVE-2026-66404

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-66404

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Vendor Advisories for CVE-2026-66404 (1)

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

Vendor Pages for CVE-2026-66404 (1)

🔗 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 Read full article

https://www.cve.org/CVERecord?id=CVE-2026-66404

Same Patch Batch · ECOVACS ROBOTICS · 2026-08-10 · 9 CVEs total

CVE-2026-66405	8.8 HIGH	Hellohas Robotics DEEBOT PRO M1 调试信息泄露漏洞
CVE-2026-66407	8.1 HIGH	Hellohas Robotics DEEBOT PRO M1 加密问题漏洞
CVE-2026-66403	7.5 HIGH	Hellohas Robotics DEEBOT PRO M1 调试信息泄露漏洞
CVE-2026-66411	5.3 MEDIUM	Hellohas Robotics DEEBOT PRO M1 授权问题漏洞
CVE-2026-66409	5.3 MEDIUM	Hellohas Robotics DEEBOT PRO M1 信任管理问题漏洞
CVE-2026-66410	4.8 MEDIUM	Hellohas Robotics DEEBOT PRO M1 加密问题漏洞
CVE-2026-66406	4.8 MEDIUM	Hellohas Robotics DEEBOT PRO M1 加密问题漏洞
CVE-2026-66408	4.6 MEDIUM	Hellohas Robotics DEEBOT PRO M1 信任管理问题漏洞

IV. Related Vulnerabilities

Same product: DEEBOT PRO M1

Same vendor: ECOVACS ROBOTICS

Same weakness: CWE-295