CVE-2021-45613: Certain NETGEAR devices are affected by command injection by an unauthenticated attacker
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CRITICAL 9.6UPGRADEUPGRADEUPGRADE
CVE-2021-45613 is a critical-severity flaw (CVSS 9.6) affecting cbr40 firmware, cbr750 firmware, d7000v2 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 command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, D7000v2 before 1.0.0.74, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, MR80 before 1.1.2.20, MS80 before 1.1.2.20, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX43 before 1.0.3.96,
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 cbr40 firmware UPGRADE
Affected: < 2.5.0.24
Fixed in: 2.5.0.24
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 cbr750 firmware UPGRADE
Affected: < 4.6.3.6
Fixed in: 4.6.3.6
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 d7000v2 firmware UPGRADE
Affected: < 1.0.0.74
Fixed in: 1.0.0.74
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 lax20 firmware UPGRADE
Affected: < 1.1.6.28
Fixed in: 1.1.6.28
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 mk62 firmware UPGRADE
Affected: < 1.0.6.116
Fixed in: 1.0.6.116
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 mr60 firmware UPGRADE
Affected: < 1.0.6.116
Fixed in: 1.0.6.116
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-2021-45613?
cbr40 firmware: upgrade to 2.5.0.24; cbr750 firmware: upgrade to 4.6.3.6; d7000v2 firmware: upgrade to 1.0.0.74. Exact commands for each OS are on this page.
Is CVE-2021-45613 being exploited?
CVE-2021-45613 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-2021-45613 affect?
CVE-2021-45613 affects cbr40 firmware, cbr750 firmware, d7000v2 firmware. Severity is critical (CVSS 9.6). Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, D7000v2 before 1.0.0.74, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.11
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