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
- Netgear R6400v2
- Netgear R6400v2_firmware — versions 1.0.4.106
- Netgear R6700
- Netgear R6700_firmware — versions 1.0.2.16
- Netgear R6700v3
- Netgear R6700v3_firmware — versions 1.0.4.106
- Netgear R6900
- Netgear R6900_firmware — versions 1.0.2.16
- Netgear R6900p
- Netgear R6900p_firmware — versions 1.3.2.134
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
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.