What is CVE-2026-123994?

CVE-2026-123994 is a medium-severity vulnerability in Hisense Vidaa, classified under Missing Authentication for Critical Function. CVSS score: 6.3/10. Published 2026-11-06.

How severe is CVE-2026-123994?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Hisense Vidaa

CVE-2026-123994

Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an unauthenticated access vulnerability in the DIAL (Discovery and Launch) service on TCP port 56789, which accepts control requests from any LAN-adjacent device without authentication, pairing, or user notification. Attackers can query running application states, enumerate installed applications via HTTP response codes, terminate active sessions with a DELETE request, and launch applications or bypass YouTube's Origin check by spoofing the Origin header to disclose viewing activity and subscriptions or disrupt device functionality.

Vulnerability class: Broken Authentication

Published 2026-11-06.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Hisense Vidaa — versions 0000.01.00a.P0220

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

Researcher Disclosure (technical-description, exploit)
VulnCheck Advisory: Hisense VIDAA Smart TV DIAL Service Unauthenticated Access (third-party-advisory)

Frequently asked questions

What is CVE-2026-123994?: CVE-2026-123994 is a medium-severity vulnerability in Hisense Vidaa, classified under Missing Authentication for Critical Function. CVSS score: 6.3/10. Published 2026-11-06.
How severe is CVE-2026-123994?: Medium severity. CVSS v3 base score is 6.3 out of 10.