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CVE-2026-123997— Hisense VIDAA Smart TV Unauthenticated DoS via SetAVTransportURI

Quick assessment

Affected
Hisense VIDAA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

海信 VIDAA 智能电视固件版本 V0000.01.00a.P0220 在 UPnP/DLNA AVTransport SOAP 服务中存在一个无需身份验证的拒绝服务漏洞。该漏洞允许处于同一局域网的攻击者，通过在 TCP 38400 端口发送特制的 SetAVTransportURI 请求，导致整个电视软件层冻结。攻击者无需任何凭证即可利用此缺陷，使设备对遥控器或前面板输入完全无响应，必须通过物理断电重启才能恢复功能。

CVSS 6.5 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hisense VIDAA 0000.01.00a.P0220 affected
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I. Basic Information for CVE-2026-123997

Vulnerability Information
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Vulnerability Title
Hisense VIDAA Smart TV Unauthenticated DoS via SetAVTransportURI
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hisense VIDAA 0000.01.00a.P0220 -

II. Public POCs for CVE-2026-123997

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III. Intelligence Information for CVE-2026-123997

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Other References for CVE-2026-123997 (2)

Same Patch Batch · Hisense · 2026-11-06 · 6 CVEs total

CVE-2026-123993 8.8 HIGH Hisense VIDAA Smart TV Unauthenticated WebDriver Remote Access
CVE-2026-123998 8.3 HIGH Hisense VIDAA Smart TV MQTT Broker Authentication Bypass
CVE-2026-123994 6.3 MEDIUM Hisense VIDAA Smart TV DIAL Service Unauthenticated Access
CVE-2026-123996 4.6 MEDIUM Hisense VIDAA Smart TV UPnP/DLNA Missing Authentication
CVE-2026-123995 4.6 MEDIUM Hisense VIDAA Smart TV SSRF via SetAVTransportURI CurrentURI

IV. Related Vulnerabilities

Same product: VIDAA
Same vendor: Hisense
Same weakness: CWE-770