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CVE-2021-23147

MEDIUM

6.8

CVSS Score

Published: December 30, 2021 at 09:31 PM UTC

Updated: June 17, 2026 at 03:38 AM UTC

3 products affected across 2 vendorsR6700 FirmwareR6700Netgear Nighthawk R6700

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Severity

MEDIUM6.8

Exploit prediction

EPSS 0.4%

Description

Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.

Affected

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

R6700 Firmware · NETGEAR

95%

netgear-r6700 (same device)

Netgear Nighthawk R6700 · Tenable

60%

R6700 · NETGEARdevice

80%

All versions

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-2021-57

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-287

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