CVE-2025-59449 – YoLink MQTT Broker Authorization Bypass

CVE ID : CVE-2025-59449

Published : Oct. 6, 2025, 8:15 p.m. | 18 minutes ago

Description : The YoSmart YoLink MQTT broker through 2025-10-02 does not enforce sufficient authorization controls to prevent cross-account attacks, allowing an attacker to remotely operate affected devices if the attacker obtains the associated device IDs. Because YoLink device IDs are predictable, an attacker can exploit this to gain full control over any other YoLink user’s devices.

Severity: 4.9 | MEDIUM

Visit the link for more details, such as CVSS details, affected products, timeline, and more…