VIDAA SMART TV FIRMWARE · CVE-2026-123997 · Infrastructure
NO FIX YET · SEE WHAT TO DO
VulnCheck reports that Hisense VIDAA smart TV firmware V0000.01.00a.P0220 and earlier can be frozen by a crafted SetAVTransportURI request to the UPnP/DLNA AVTransport service on TCP port 38400. Someone on the same local network needs no credentials; the TV stays unresponsive until it is power-cycled. No vendor advisory or fix has been found yet.
first public Nov 6, 2026 · 2 sources
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Hisense VIDAA smart TVs running firmware V0000.01.00a.P0220 that expose the UPnP/DLNA AVTransport service on the local network. Devices on a network with no untrusted users or guest access are at much lower risk, and TVs not running this firmware are not named.
Not affected if no-local-untrusted-devices, other-firmware
Who cares dlna, hisense, home-network, smart-tv, upnp, vidaa
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.
This page as .md · .json · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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