Cudy WR3000 up to 2.5.23 Authentication Plugin improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in Cudy WR3000 up to 2.5.23. The affected element is an unknown function of the component Authentication Plugin. The manipulation results in improper authorization. This vulnerability is reported as CVE-2026-71960. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Cudy WR3000 up to 2.5.23. Affected is an unknown part of the component Authentication Plugin. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at cudy.com. This vulnerability is traded as CVE-2026-71960 since 08/08/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 2.5.24 eliminates this vulnerability.

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Productinfo

Vendor

• Cudy

Name

• WR3000

Version

• 2.5.0
• 2.5.1
• 2.5.2
• 2.5.3
• 2.5.4
• 2.5.5
• 2.5.6
• 2.5.7
• 2.5.8
• 2.5.9
• 2.5.10
• 2.5.11
• 2.5.12
• 2.5.13
• 2.5.14
• 2.5.15
• 2.5.16
• 2.5.17
• 2.5.18
• 2.5.19
• 2.5.20
• 2.5.21
• 2.5.22
• 2.5.23

CPE 2.3info

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CPE 2.2info

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