CVE-2021-45643
Certain NETGEAR devices are affected by incorrect configuration of security settings. This...
Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, and XR1000 before 1.0.0.58.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, and XR1000 before 1.0.0.58.
- Record
CVE-2021-45643- CVSS 3.1
- 8.2 High
CVSS:3.1/AC:L/AV:A/A:N/C:H/I:L/PR:N/S:C/UI:N - Updated
- 2026-11-02
EUVDEUVD-2021-32409
Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, and XR1000 before 1.0.0.58.
- Record
EUVD-2021-32409- CVSS 3.1
- 8.2 High
CVSS:3.1/AC:L/AV:A/A:N/C:H/I:L/PR:N/S:C/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-45q7-8w9c-28g8 No score
Certain NETGEAR devices are affected by incorrect configuration of security settings. This...
Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, and XR1000 before 1.0.0.58.
- Record
GHSA-45q7-8w9c-28g8- Updated
- 2026-11-02
NVD
Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, and XR1000 before 1.0.0.58.
- Record
CVE-2021-45643- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 3.3 Low
AV:A/AC:L/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-45643 is a high vulnerability (CVSS 8.2) in Netgear R6400v2 Firmware, published December 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 42nd percentile. No source names a fixed version.