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Vulnerability record · CVE-2026-66407 · published 10 August 2026

CVE-2026-66407: Broken cryptographic algorithm vulnerability

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.

7.7 CVSS 4.0 High EPSS 0.33% · top 76.5% CWE-327 · Broken cryptographic algorithm Deferred
7.7CVSS 4.0 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
28 Aug 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://jvn.jp/en/vu/JVNVU92804348/
https://robot.hellohas.co.jp/news/update_20260331/

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Source: NIST National Vulnerability Database (record CVE-2026-66407), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.