Firmware Update Vulnerability in Solax Devices
CVE-2025-15575

5.3MEDIUM

Key Information:

Vendor

Solax Power

Status
Pocket Wifi 3.0
Pocket Wifi+lan
Pocket Wifi+4gm
Pocket Wifi+lan 2.0
Vendor
CVE Published:
12 February 2026

What is CVE-2025-15575?

The firmware update feature in Solax devices lacks verification mechanisms, allowing unauthorized firmware files to be installed. This absence of checks, such as digital signature verification, compromises device integrity and security. Additionally, the ESP32's built-in security features, including secure boot, are not being utilized, further increasing the risk of malicious firmware uploads, which can lead to unauthorized control of affected devices.

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Deploy the Patch

Affected Version(s)

Pocket WiFi 3.0 <3.022.03

Pocket WiFi 4.0 <003.03

Pocket WiFi+4GM <1.005.05

References

https://r.sec-consult.com/solax

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Stefan Viehböck, SEC Consult Vulnerability Lab
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