CVE-2026-71960

Cudy WR3000 2.0 running firmware before 2.5.24 contains a hard-coded JWT HMAC signing secret vulnerability in the Mosquitto MQTT broker's authentication plugin that allows unauthenticated attackers to forge valid JWT tokens by extracting the secret from the firmware image. Attackers can use the extracted secret to craft arbitrary JWT tokens and authenticate to the MQTT broker without legitimate credentials, gaining unauthorized access to the device's mesh networking interface.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.cudy.com/en-us/pages/download-center/wr3000-2-0
https://www.vulncheck.com/advisories/cudy-wr3000-hard-coded-jwt-secret-authentication-bypass-via-mqtt

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 15:18

Updated : 2026-09-09 20:40

NVD link : CVE-2026-71960

Mitre link : CVE-2026-71960

CVE.ORG link : CVE-2026-71960

JSON object : View

Products Affected

No product.

CWE

CWE-798

Use of Hard-coded Credentials

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