Denial of service in Hisense VIDAA Smart TV via UPnP AVTransport
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 is affected. A missing limit on resources (CWE-770) in the UPnP/DLNA AVTransport SOAP service lets an unauthenticated attacker on the local network freeze the television software with a crafted SetAVTransportURI request on TCP port 38400. The device stops responding to remote control and front-panel input until it is power cycled. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
The sources list no fixed version for Hisense VIDAA.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-11-06 Threatist record created from CVE-2026-123997
- 2026-11-06 Alias added: GHSA-6pfw-v7rf-jx64
- 2026-11-08 Priority changed: MEDIUM → LOW
References
Exploit 1
More Hisense vulnerabilities
- TI-2026-86075 Unauthenticated WebDriver access in Hisense VIDAA Smart TV CVSS 4.0HIGH 8.7
- TI-2026-86080 Authentication bypass in Hisense VIDAA Smart TV MQTT broker CVSS 4.0HIGH 7.2
- TI-2019-11476 The Hisense F17 Android device with a build fingerprint of… CVSS 3.1MEDIUM 5.5
- TI-2019-11464 The Hisense U965 Android device with a build fingerprint of… CVSS 3.1MEDIUM 5.5
- TI-2026-86076 Hisense VIDAA Smart TV DIAL Service Unauthenticated Access CVSS 4.0MEDIUM 5.3
- TI-2026-86078 Missing authentication in Hisense VIDAA Smart TV UPnP/DLNA service CVSS 4.0MEDIUM 4.8
Sources
- CVE-2026-123997 · CVE Program
- CVE-2026-123997 · NVD
- FIRST EPSS
- GHSA-6pfw-v7rf-jx64 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences