CVE-2026-71960 — Cudy WR3000 2.0 Hard-coded JWT Secret Authentication Bypass via MQTT
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 unaut…
Published: 2026-08-19 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7