U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Incorrect Access Control. The device exposes a UART interface that lacks authentication, authorization, or access control mechanisms. An attacker with physical access to the UART pins can connect to the interface and gain unrestricted access to device functionality.

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Solution

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Workaround

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History

Sun, 17 May 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared U-speed
U-speed ac1200 Gigabit Wi-fi Router
Vendors & Products U-speed
U-speed ac1200 Gigabit Wi-fi Router

Thu, 14 May 2026 16:15:00 +0000

Type Values Removed Values Added
Title Incorrect Access Control on UART Interface of U‑SPEED AC1200 Gigabit Wi‑Fi Router

Thu, 14 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 13 May 2026 18:15:00 +0000

Type Values Removed Values Added
Title Incorrect Access Control on UART Interface of U‑SPEED AC1200 Gigabit Wi‑Fi Router
Weaknesses CWE-284

Wed, 13 May 2026 16:15:00 +0000

Type Values Removed Values Added
Description U-SPEED AC1200 Gigabit Wi-Fi Router (Model: T18-21K) V1.0 is vulnerable to Incorrect Access Control. The device exposes a UART interface that lacks authentication, authorization, or access control mechanisms. An attacker with physical access to the UART pins can connect to the interface and gain unrestricted access to device functionality.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-14T13:53:38.962Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36738

cve-icon Vulnrichment

Updated: 2026-05-14T13:53:08.654Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-13T16:16:40.707

Modified: 2026-05-14T15:16:45.500

Link: CVE-2026-36738

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-17T19:42:09Z

Weaknesses