CVE-2026-71960: Use of Hard-coded Credentials in Shenzhen Cudy Technology Co., Ltd. WR3000 2.0
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.
CVE-2026-71960: Use of Hard-coded Credentials in Shenzhen Cudy Technology Co., Ltd. WR3000 2.0
Description
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 v4.0
Score 9.3critical
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-08T16:43:04.177Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a85bfc5acd9273b49338bdd
Added to database: 08/19/2026, 14:37:57 UTC
Last updated: 08/19/2026, 14:37:57 UTC
Views: 1
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