CVE-2025-59448 — MEDIUM (4.7)

Vulnerability Description

Components of the YoSmart YoLink ecosystem through 2025-10-02 leverage unencrypted MQTT to communicate over the internet. An attacker with the ability to monitor network traffic could therefore obtain sensitive information or tamper with the traffic to control affected devices. This affects YoLink Hub 0382, YoLink Mobile Application 1.40.41, and YoLink MQTT Broker. NOTE: The vendor states that the vulnerability described (related to insecure transmission) only impacts the legacy mobile application logic, not the Hub hardware or firmware. The Hub functions solely as a pass-through (transparent gateway) for LoRa wireless data and does not inspect or process the application layer data.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-319

References

FAQ

What is CVE-2025-59448?

CVE-2025-59448 is a vulnerability with a CVSS score of 4.7 (MEDIUM). Components of the YoSmart YoLink ecosystem through 2025-10-02 leverage unencrypted MQTT to communicate over the internet. An attacker with the ability to monitor network traffic could therefore obtain...

How severe is CVE-2025-59448?

CVE-2025-59448 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-59448?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.