Vulnerability Details CVE-2026-50085
The Aqara Board service (op-test.aqara.com) accepts arbitrary MQTT command payloads, and forwards them to the platfom's HiveMQ broker without authentication. This is an instance of "CWE-306: Missing Authentication for Critical Function" and has an estimated CVSS ofCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L (8.6 High). When combined with CVE-2026-50082, CVE-50083, and CVE-50084, this can lead to a fully unauthenticated, remote takeover of affected devices.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 33.2%
CVSS Severity
CVSS v3 Score 8.6
References
Products affected by CVE-2026-50085
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cpe:2.3:a:aqara:board_service:2026-04-20