BaseFortify

Publication date: 2025-10-06

Last updated on: 2025-11-26

Assigner: MITRE

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 Scores

EPSS Scores

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Meta Information

Published

2025-10-06

Last Modified

2025-11-26

Generated

2026-07-06

AI Q&A

2025-10-06

EPSS Evaluated

2026-07-05

NVD

CVE-2025-59448

Affected Vendors & Products

Vendor	Product	Version / Range
yolink	yolink_mobile_application	1.40.41
yolink	yolink_mqtt_broker	*
yolink	yolink_smart_hub	0382

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-319	The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

Attack-Flow Graph

Executive Summary

This vulnerability involves components of the YoSmart YoLink ecosystem using unencrypted MQTT communication over the internet. Because the communication is not encrypted, an attacker who can monitor network traffic could intercept sensitive information or manipulate the traffic to control the affected devices.

Impact Analysis

The vulnerability can impact you by allowing an attacker to obtain sensitive information transmitted between devices or to tamper with the communication, potentially gaining unauthorized control over the affected YoLink devices.

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