GHSA-3whc-7xhg-h8j2CriticalCVSS 8.1
Cudy TR3000 before 2.5.42 contains an authentication bypass vulnerability in the Mosquitto plugin...
🔗 CVE IDs covered (1)
📋 Description
Cudy TR3000 before 2.5.42 contains an authentication bypass vulnerability in the Mosquitto plugin auth_plugin_jwt.so that accepts unsigned JWTs using alg none. Attackers holding any Cudy-trusted client certificate can authenticate as admincudydevice on port 8883 and publish batchcmd requests to execute commands as root.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-75491
- https://d1jvyy13vm72kv.cloudfront.net/device/upgrade/m_upgrade_TR3000_256MB_Flash-R103-2.5.42-20261103-160202-sysupgrade_82672.zip
- https://www.cudy.com/en-us/pages/download-center/tr3000-1-0
- https://www.vulncheck.com/advisories/cudy-tr3000-before-2.5.42-mqtt-jwt-authentication-bypass-via-alg-none-tokens
- https://github.com/advisories/GHSA-3whc-7xhg-h8j2