Vulnerability in Netgear R6400v2

CVE-2021-40847

The update process of the Circle Parental Control Service on various NETGEAR routers allows remote attackers to achieve remote code execution as root via a MitM attack. While the parental controls themselves are not enabled by default on t…

EPSS: 0.101 (95.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-40847?
CVE-2021-40847 is a high-severity vulnerability in Netgear R6400v2, classified under Cleartext Transmission of Sensitive Information. CVSS score: 8.1/10. Published 2021-09-21.
How severe is CVE-2021-40847?
High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2021-40847 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.