CVE-2025-15574: Solax Power Pocket wifi+4gm

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Solax Power Pocket wifi+4gm: before 1.005.05 (fixed in 1.005.05)
• Solax Power Pocket Wifi+lan: before 1.009.02 (fixed in 1.009.02)
• Solax Power Pocket Wifi+lan 2.0: before 006.06 (fixed in 006.06)
• Solax Power Pocket Wifi 3.0: before 3.022.03 (fixed in 3.022.03)
• Solax Power Pocket Wifi 4.0: before 003.03 (fixed in 003.03)

Published 2026-02-12. Last modified 2026-06-17.