CVE-2026-71960
Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-798 |
| Vendor | shenzhen cudy technology co., ltd. |
| Product | wr3000 2.0 |
| Published | Aug 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
Shenzhen Cudy Technology Co., Ltd. / WR3000 2.0
0 < 2.5.24
References
Credits
Nir Yehoshua