Is CVE-2026-50085 actively exploited?

No active exploitation of CVE-2026-50085 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-50085 be exploited remotely?

Yes. CVE-2026-50085 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-50085?

CVE-2026-50085 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-50085

CWE-306Published: June 12, 2026· Updated: Jul 9, 2026

9.8

CVSS v3.1

EPSS:0.26%probability of exploitation in 30 daysPercentile:17.5th

Official 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.

NVD Source

Risk Analysis

This critical vulnerability in the Aqara Board service (op-test.aqara.com) is due to missing authentication for a critical function, allowing arbitrary MQTT command payloads to be forwarded without authentication. This flaw, especially when combined with other vulnerabilities, could lead to a fully unauthenticated, remote takeover of affected devices. The CVSS score of 9.8 indicates a severe risk, and the lack of an EPSS score means its exploitation likelihood is currently unknown.

No public exploit is currently known for this vulnerability. This flaw is remotely exploitable without user interaction, given its network attack vector and low attack complexity.

Recommended Action

Ensure the Aqara Board service is updated to a patched version that enforces proper authentication for MQTT command payloads. Implement network segmentation and access controls to restrict access to critical services.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-50085 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.