CVE-2020-11015: Device Authentication Vulnerability in thinx-device-api IoT Device Management Server

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-30 · updated 2026-06-17
Weakness: CWE-290

Description

A vulnerability has been disclosed in thinx-device-api IoT Device Management Server before version 2.5.0. Device MAC address can be spoofed. This means initial registration requests without UDID and spoofed MAC address may pass to create new UDID with same MAC address. Full impact needs to be reviewed further. Applies to all (mostly ESP8266/ESP32) users. This has been fixed in firmware version 2.5.0.

Affected products

suculent thinx-device-api: before 2.5.0 — fixed in 2.5.0

How to fix

Upgrade to a fixed version: suculent thinx-device-api 2.5.0. Check the vendor advisory for mitigations.

References

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