CVE-2026-50085: Aqara Board IoT insecure debug API

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-06-12 · updated 2026-10-26
Weakness: CWE-306

Description

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.

Affected products

Aqara Board service: 2026-04-20

References

https://github.com/xn0tsa/theres-no-place-like-home
https://www.runzero.com/advisories/aqara-board-iot-insecure-debug-api-cve-2026-50085
https://github.com/xn0tsa/theres-no-place-like-home

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