Description
The WIFI4 N300 router (Model: T1 Pro) v1.0.0 by U-speed contains an insecure access control flaw that allows an attacker to gain unauthenticated root shell. The vulnerability is caused by the exposure of the UART debugging interface having a lack of authentication, authorization and access control functionality. Once the interface is soldered and connected to the attacker, they gain root privilege to the system.
Published: 2026-10-29
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 03 Nov 2026 05:15:00 +0000

Type Values Removed Values Added
Title UART Debug Port Exposes Root Shell on U-speed WiFi4 N300 Router

Tue, 03 Nov 2026 03:15:00 +0000

Type Values Removed Values Added
Title Insecure UART Debug Interface Allows Unauthenticated Root Shell in U-speed WiFi4 N300 Router
Weaknesses CWE-284

Tue, 03 Nov 2026 01:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-306
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 30 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared U-speed
U-speed n300 Router
Vendors & Products U-speed
U-speed n300 Router

Thu, 29 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Title Insecure UART Debug Interface Allows Unauthenticated Root Shell in U-speed WiFi4 N300 Router
Weaknesses CWE-284

Thu, 29 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Description The WIFI4 N300 router (Model: T1 Pro) v1.0.0 by U-speed contains an insecure access control flaw that allows an attacker to gain unauthenticated root shell. The vulnerability is caused by the exposure of the UART debugging interface having a lack of authentication, authorization and access control functionality. Once the interface is soldered and connected to the attacker, they gain root privilege to the system.
References

Subscriptions

U-speed N300 Router
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-11-03T00:17:32.264Z

Reserved: 2026-08-25T00:00:00.000Z

Link: CVE-2026-79589

cve-icon Vulnrichment

Updated: 2026-11-03T00:17:26.919Z

cve-icon NVD

Status : Deferred

Published: 2026-10-29T14:17:59.487

Modified: 2026-11-03T01:16:55.597

Link: CVE-2026-79589

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T05:00:13Z

Weaknesses