CVE-2021-45650: Certain NETGEAR devices are affected by disclosure of sensitive information
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CRITICAL 9.1REMOTEUPGRADEUPGRADEUPGRADE
CVE-2021-45650 is a critical-severity flaw (CVSS 9.1) affecting r7000 firmware, r7900 firmware, r8000 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Certain NETGEAR devices are affected by disclosure of sensitive information. This affects R7000 before 1.0.11.110, R7900 before 1.0.4.30, R8000 before 1.0.4.62, RS400 before 1.5.1.80, R6400v2 before 1.0.4.102, R7000P before 1.3.2.126, R6700v3 before 1.0.4.102, and R6900P before 1.3.2.126.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
Published CVE record published
Updated Record last modified
netgear r7000 firmware UPGRADE
Affected: < 1.0.11.110
Fixed in: 1.0.11.110
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
netgear r7900 firmware UPGRADE
Affected: < 1.0.4.30
Fixed in: 1.0.4.30
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
netgear r8000 firmware UPGRADE
Affected: < 1.0.4.62
Fixed in: 1.0.4.62
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
netgear rs400 firmware UPGRADE
Affected: < 1.5.1.80
Fixed in: 1.5.1.80
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
netgear r6400v2 firmware UPGRADE
Affected: < 1.0.4.102
Fixed in: 1.0.4.102
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
netgear r7000p firmware UPGRADE
Affected: < 1.3.2.126
Fixed in: 1.3.2.126
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-45650?
r7000 firmware: upgrade to 1.0.11.110; r7900 firmware: upgrade to 1.0.4.30; r8000 firmware: upgrade to 1.0.4.62. Exact commands for each OS are on this page.
Is CVE-2021-45650 being exploited?
CVE-2021-45650 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-45650 affect?
CVE-2021-45650 affects r7000 firmware, r7900 firmware, r8000 firmware. Severity is critical (CVSS 9.1). Certain NETGEAR devices are affected by disclosure of sensitive information. This affects R7000 before 1.0.11.110, R7900 before 1.0.4.30, R8000 before 1.0.4.62, RS400 before 1.5.1.80, R6400v2 before 1.0.4.102, R7000P before 1.3.2.126, R6700
How urgent is CVE-2021-45650?
Priority 53/100. Critical severity; Remotely exploitable, no login, no user action
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