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CVE-2021-20161

MEDIUM
6.8
CVSS Score
Published: December 30, 2021 at 09:31 PM UTC
Updated: June 17, 2026 at 03:33 AM UTC
3 products affected across 2 vendorsTew 827DRU FirmwareTew-827DruTrendnet AC2600 TEW-827DRU

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%

Description

Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient protections for the UART functionality. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection. No username or password is required and the user is given a root shell with full control of the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.tenable.com/security/research/tra-2021-54

CVSS

6.8MEDIUM[email protected]
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287CWE-306

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