CVE-2022-40620: FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly valid
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HIGH 7.7REMOTEUPGRADEUPGRADEUPGRADE
CVE-2022-40620 is a high-severity flaw (CVSS 7.7) affecting rbr20 firmware, r6230 firmware, r6260 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly validate TLS certificates when downloading update packages through its auto-update mechanism. An attacker (suitably positioned on the network) could intercept the update request and deliver a malicious update package in order to gain arbitrary code execution on affected devices. This affects R6230 before 1.1.0.112, R6260 before 1.1.0.88, R7000
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 rbr20 firmware UPGRADE
Affected: < 2.7.2.26
Fixed in: 2.7.2.26
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 r6230 firmware UPGRADE
Affected: < 1.1.0.112
Fixed in: 1.1.0.112
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: < 1.1.0.88
Fixed in: 1.1.0.88
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 r7000 firmware UPGRADE
Affected: < 1.0.11.134
Fixed in: 1.0.11.134
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 r8900 firmware UPGRADE
Affected: < 1.0.5.42
Fixed in: 1.0.5.42
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 r9000 firmware UPGRADE
Affected: < 1.0.5.42
Fixed in: 1.0.5.42
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-2022-40620?
rbr20 firmware: upgrade to 2.7.2.26; r6230 firmware: upgrade to 1.1.0.112; r6260 firmware: upgrade to 1.1.0.88. Exact commands for each OS are on this page.
Is CVE-2022-40620 being exploited?
CVE-2022-40620 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-2022-40620 affect?
CVE-2022-40620 affects rbr20 firmware, r6230 firmware, r6260 firmware. Severity is high (CVSS 7.7). FunJSQ, a third-party module integrated on some NETGEAR routers and Orbi WiFi Systems, does not properly validate TLS certificates when downloading update packages through its auto-update mechanism. An attacker (suitably positioned on the n
How urgent is CVE-2022-40620?
Priority 43/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
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