# CVE-2026-123996: Hisense VIDAA Smart TV UPnP/DLNA Missing Authentication

Status: published. Published: 2026-11-06. Updated: 2026-11-06.

Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains a missing authentication vulnerability in the UPnP/DLNA RenderingControl service on TCP port 38400 that allows a LAN-adjacent attacker to issue SetVolume, SetMute, and SelectPreset(FactoryDefaults) commands after a one-time DLNA pairing with no per-command authentication or session token. Attackers can send a continuous loop of unauthenticated commands to override the physical remote, change volume and mute, and reset all picture and audio calibration settings.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Hisense / VIDAA: 0000.01.00a.P0220 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 4.8 (medium); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 4.6 (medium); CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-306

## Exploit evidence

- exploit: https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research (CNA: VulnCheck)

## References

- https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research (CNA: VulnCheck; technical-description, exploit)

- https://www.vulncheck.com/advisories/hisense-vidaa-smart-tv-upnp-dlna-missing-authentication (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-123996; retrieved 2026-11-06; source updated 2026-11-06

Revision: 4bf9f2ce0a250194b4ce60233d62f26c9dcd4032106c11041393ce197c34009e

Canonical: https://y2.dev/cve/CVE-2026-123996

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