CVE-2026-71960

CriticalCVSS 9.1/10Last modified Sep 9, 2026

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-798

Affected software

No affected versions have been published.

Timeline

Published
Aug 19, 2026
Last modified
Sep 9, 2026
NVD status
Deferred

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CVE-2026-71960: Critical severity, CVSS 9.1 | Vulnix