CVE-2026-123998: high-severity vulnerability in Hisense VIDAA
Hisense VIDAA Smart TV MQTT Broker Authentication Bypass
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
38Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.2
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.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Hisense · VIDAApublic PoCs found — 1
cve_referencegithub.com/yehia-mamdouh/Hisense-Smart-TV-Security-Researchunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Hisense VIDAA
In the same product, most dangerous first.
CVE-2026-123997HIGHHisense VIDAA Smart TV Unauthenticated DoS via SetAVTransportURIEPSS —CVE-2026-123996MEDIUMHisense VIDAA Smart TV UPnP/DLNA Missing AuthenticationEPSS —CVE-2026-123995MEDIUMHisense VIDAA Smart TV SSRF via SetAVTransportURI CurrentURIEPSS —CVE-2026-123994MEDIUMHisense VIDAA Smart TV DIAL Service Unauthenticated AccessEPSS —CVE-2026-123993HIGHHisense VIDAA Smart TV Unauthenticated WebDriver Remote AccessEPSS —