CVE-2025-59448

MEDIUM EPSS 6.6%

Published Oct 6, 20259mo ago · Modified Jun 17, 20262w ago

4.7 CVSS 3.1

Medium

Published Oct 6, 2025 9mo ago

Last Modified Jun 17, 2026 2w ago

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 Details

Base Score

4.7

Exploitability

1.6

Impact

2.7

Vector string

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

Attack Vector Adjacent

Attack Complexity High

Privileges Required None

User Interaction None

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

6.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-319

References 4

bishopfox.com https://bishopfox.com/blog/advisories
bishopfox.com https://bishopfox.com/blog/how-a-20-smart-device-gave-me-access-to-your-home
shop.yosmart.com https://shop.yosmart.com/pages/product-support
shop.yosmart.com https://shop.yosmart.com/pages/sa-2025-001

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.