The Dyson MQTT server (2022 and possibly later) allows publications and subscriptions by a client that has the correct values of AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, and device serial number, even if a device (such as a Pure Hot+Cool device) has been removed and is not visible in the supported MyDyson app. This could allow an unexpected actor to obtain control and set the room temperature (up to 37 Celsius) if ownership of the device is transferred without wiping the device. NOTE: the Supplier's position is that this is "a potential vulnerability that dates back 4 years ago in 2022 and we are unable to replicate that anymore."
History

Thu, 08 Jan 2026 19:30:00 +0000

Type Values Removed Values Added
References

Thu, 08 Jan 2026 18:30:00 +0000

Type Values Removed Values Added
Description An issue discovered in Dyson App v6.1.23041-23595 allows unauthenticated attackers to control other users' Dyson IoT devices remotely via MQTT. The Dyson MQTT server (2022 and possibly later) allows publications and subscriptions by a client that has the correct values of AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, and device serial number, even if a device (such as a Pure Hot+Cool device) has been removed and is not visible in the supported MyDyson app. This could allow an unexpected actor to obtain control and set the room temperature (up to 37 Celsius) if ownership of the device is transferred without wiping the device. NOTE: the Supplier's position is that this is "a potential vulnerability that dates back 4 years ago in 2022 and we are unable to replicate that anymore."
Weaknesses CWE-420
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_1

{'score': 3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:N'}


Thu, 30 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Dyson
Dyson app
Vendors & Products Dyson
Dyson app

Wed, 29 Oct 2025 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-287
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 29 Oct 2025 17:00:00 +0000

Type Values Removed Values Added
Description An issue discovered in Dyson App v6.1.23041-23595 allows unauthenticated attackers to control other users' Dyson IoT devices remotely via MQTT.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-01-08T18:17:27.310Z

Reserved: 2025-08-17T00:00:00.000Z

Link: CVE-2025-56558

cve-icon Vulnrichment

Updated: 2025-10-29T20:37:02.049Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-29T17:15:35.760

Modified: 2026-01-08T19:15:56.413

Link: CVE-2025-56558

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-30T14:38:37Z