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CVE-2025-15573

Missing Certificate Validation for Solax Power Pocket WiFi models MQTT Cloud Connection

The affected devices do not validate the server certificate when connecting to the SolaX Cloud MQTTS server hosted in the Alibaba Cloud (mqtt001.solaxcloud.com, TCP 8883). This allows attackers in a man-in-the-middle position to act as the legitimate MQTT server and issue arbitrary commands to devices.

CVSS 3.1 · 9.4 Critical EPSS < 1% KEV · Not listed
Vendors
Solax Solax Power
Products
Pocket Wifi 3 Pocket Wifi+4gm Pocket Wifi+lan and 2 more
CVE-2025-15574

Insecure Credential Generation for Solax Power Pocket WiFi models MQTT Cloud Connection

When connecting to the Solax Cloud MQTT server the username is the "registration number", which is the 10 character string printed on the SolaX Power Pocket device / the QR code on the device. The password is derived from the "registration number" using a proprietary XOR/transposition algorithm. Attackers with the knowledge of the registration numbers can connect to the MQTT server and impersonate the dongle / inverters.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Solax Solax Power
Products
Pocket Wifi 3 Pocket Wifi+4gm Pocket Wifi+lan and 2 more
CVE-2025-15575

Missing Firmware Authenticity Checks in Solax Power Pocket WiFi models

The firmware update functionality does not verify the authenticity of the supplied firmware update files. This allows attackers to flash malicious firmware update files on the device. Initial analysis of the firmware update functionality does not show any cryptographic checks (e.g. digital signature checks) on the supplied firmware update files. Furthermore, ESP32 security features such as secure boot are not used.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Solax Solax Power
Products
Pocket Wifi 3 Pocket Wifi+4gm Pocket Wifi+lan and 2 more