CVE-2021-45647: Certain NETGEAR devices are affected by disclosure of sensitive information
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MEDIUM 6.5UPGRADEUPGRADEUPGRADE
CVE-2021-45647 is a medium-severity flaw (CVSS 6.5) affecting eax80 firmware, ex7000 firmware, r6120 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 EAX80 before 1.0.1.62, EX7000 before 1.0.1.104, R6120 before 1.0.0.76, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.78, R6850 before 1.1.0.78, R6350 before 1.1.0.78, R6330 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6700v2 before 1.2.0.76, R7000 before 1.0.11.116, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R
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 eax80 firmware UPGRADE
Affected: < 1.0.1.62
Fixed in: 1.0.1.62
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 ex7000 firmware UPGRADE
Affected: < 1.0.1.104
Fixed in: 1.0.1.104
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 r6120 firmware UPGRADE
Affected: < 1.0.0.76
Fixed in: 1.0.0.76
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 r6220 firmware MITIGATE
Affected: 1.1.0.110
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.1.0.110
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 r6230 firmware UPGRADE
Affected: < 1.1.0.110
Fixed in: 1.1.0.110
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 r6260 firmware UPGRADE
Affected: < 1.1.0.78
Fixed in: 1.1.0.78
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-2021-45647?
eax80 firmware: upgrade to 1.0.1.62; ex7000 firmware: upgrade to 1.0.1.104; r6120 firmware: upgrade to 1.0.0.76. Exact commands for each OS are on this page.
Is CVE-2021-45647 being exploited?
CVE-2021-45647 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-2021-45647 affect?
CVE-2021-45647 affects eax80 firmware, ex7000 firmware, r6120 firmware. Severity is medium (CVSS 6.5). Certain NETGEAR devices are affected by disclosure of sensitive information. This affects EAX80 before 1.0.1.62, EX7000 before 1.0.1.104, R6120 before 1.0.0.76, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.78, R6850 be
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