{"id":"CVE-2026-123996","title":"Hisense VIDAA Smart TV UPnP/DLNA Missing Authentication","summary":"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 SelectPre…","severity":"medium","cvss":4.6,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L","cvssSource":"cna","cwe":["CWE-306"],"vendor":"Hisense","product":"VIDAA","affected":["VIDAA 0000.01.00a.P0220"],"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T18:58:11.841Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123996","references":[{"url":"https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research","label":"Researcher Disclosure"},{"url":"https://www.vulncheck.com/advisories/hisense-vidaa-smart-tv-upnp-dlna-missing-authentication","label":"VulnCheck Advisory: Hisense VIDAA Smart TV UPnP/DLNA Missing Authentication"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T20:03:04.296Z","epss":0.00156,"epssPercentile":0.0474,"slug":"CVE-2026-123996","body":"## Overview\n\nHisense 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.\n\n## Affected\n\n- `VIDAA 0000.01.00a.P0220`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}