What’s Vulnerable › Vulnerabilities

CVE-2021-23147

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-30 · updated 2026-06-17
• Weakness: CWE-287

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 products

• NETGEAR R6700: 1.0.4.120

References

• https://www.tenable.com/security/research/tra-2021-57
• https://www.tenable.com/security/research/tra-2021-57

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