CVE-2026-123997
Hisense VIDAA Smart TV Unauthenticated DoS via SetAVTransportURI
Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an unauthenticated denial-of-service vulnerability in the UPnP/DLNA AVTransport SOAP service that allows LAN-adjacent attackers to freeze the entire television software layer by sending a crafted SetAVTransportURI request on TCP port 38400. Attackers can exploit this flaw without credentials to render the device completely unresponsive to remote control or front-panel input, requiring a physical power cycle to restore functionality.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| VIDAA Hisense |
0000.01.00a.P0220 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.1 high |
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: VulnCheck |
Exploit evidence
- https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research
exploit · CNA: VulnCheck
References
- https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-ResearchCNA: VulnCheck · technical-description, exploit
- https://www.vulncheck.com/advisories/hisense-vidaa-smart-tv-unauthenticated-dos-via-setavtransporturiCNA: VulnCheck · third-party-advisory
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