HIGH 7.2 NVD
CVE-2026-123998
Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an authentication bypass vulnerability in its remote-control MQTT broker on TCP port 36669, which ac
Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an authentication bypass vulnerability in its remote-control MQTT broker on TCP port 36669, which accepts publicly documented default credentials and an ineffective 4-digit pairing PIN with no rate limiting or lockout, allowing a brute force of the entire code space in about five seconds, while some actions require no pairing at all. A LAN-adjacent attacker can exploit this to inject key events, change volume, switch input sources, enumerate inputs, launch arbitrary installed applications, and monitor pairing activity, posing a significant risk in hotel deployments where untrusted LAN access is common.
References
- https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research
- https://www.vulncheck.com/advisories/hisense-vidaa-smart-tv-mqtt-broker-authentication-byp
This high severity vulnerability with a CVSS score of 7.2 was published on 2026-11-06 via NVD.
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