What is CVE-2021-23147?

CVE-2021-23147 is a medium-severity vulnerability in NETGEAR R6700, classified under Improper Authentication. CVSS score: 6.8/10. Published 2021-12-30.

How severe is CVE-2021-23147?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in NETGEAR R6700

CVE-2021-23147

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.

Vulnerability class: Broken Authentication

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Netgear R6700
Netgear R6700_firmware — versions 1.0.4.120
N/a Netgear Nighthawk R6700 — versions 1.0.4.120

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

vulnreport@tenable.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-23147?: CVE-2021-23147 is a medium-severity vulnerability in NETGEAR R6700, classified under Improper Authentication. CVSS score: 6.8/10. Published 2021-12-30.
How severe is CVE-2021-23147?: Medium severity. CVSS v3 base score is 6.8 out of 10.