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CVE-2026-50085

Aqara Board Service authentication bypass

8.6 HIGHPublic exploitEPSS 0.62%
  1. Published12 Jun 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Affected products

Aqara Board Service2026-04-20

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-50085 being actively exploited?

CVE-2026-50085 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.62%.

How severe is CVE-2026-50085?

CVE-2026-50085 has a CVSS 3.1 base score of 8.6, rated high. EPSS estimates a 0.62% probability of exploitation.

Which products are affected by CVE-2026-50085?

Affected products include Aqara Board Service.

How do I fix CVE-2026-50085?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-50085 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.