Device impersonation via deterministic MQTT credentials
Published Feb 12, 2026 · Updated Feb 12, 2026
Insecure credential generation in SolaX Power Pocket WiFi firmware allows remote attackers to impersonate dongles and inverters over MQTT. The cloud username is the device's 10-character registration number, while an eight-character password is deterministically derived by transposing selected characters and XORing each with 0x0b. The attack requires knowledge of a target's registration number; successful authentication grants the remote identity of the associated dongle or inverter.
Summary
What happened
Insecure credential generation in SolaX Power Pocket WiFi firmware allows remote attackers to impersonate dongles and inverters over MQTT. The cloud username is the device's 10-character registration number, while an eight-character password is deterministically derived by transposing selected characters and XORing each with 0x0b. The attack requires knowledge of a target's registration number; successful authentication grants the remote identity of the associated dongle or inverter.
The record
- CVE
- CVE-2025-15574
- Published
- Feb 12, 2026
- Updated
- Feb 12, 2026
- Vendor
- SolaX Power
- Product
- Pocket WiFi+LAN V2.0
- Classifications
- CWE-330, T1078.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 12, 2026CVE publishedPublication date reported by the CVE source.
- Feb 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=<006.06
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- SolaX MQTT password derivation scriptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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