Vulnerability in Ecovacs Robotics Deebot Pro K1vac

CVE-2026-66411

DEEBOT PRO M1 and DEEBOT PRO K1VAC incorrectly implement authentication algorithm in Websocket communications. An unauthenticated attacker may connect and operate the affected robot.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-66411: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-66411?
CVE-2026-66411 is a medium-severity vulnerability in Ecovacs Robotics Deebot Pro K1vac, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 5.3/10. Published 2026-08-10.
How severe is CVE-2026-66411?
Medium severity. CVSS v3 base score is 5.3 out of 10.