Vulnerability · Published Aug 10, 2026 · Assigned by jpcert
CVE-2026-66407
High 8.1
In plain English
A high-severity broken cryptography in DEEBOT PRO K1VAC from ECOVACS ROBOTICS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.3%top 73.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ECOVACS ROBOTICS | DEEBOT PRO M1 | 0 – before M1-1.7.27 |
| ECOVACS ROBOTICS | DEEBOT PRO K1VAC | 0 – before V1.7.821 |
Weakness: CWE-327 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H