CVE-2026-11734: A buffer overflow vulnerability in the listed NETGEAR models allows an authenticated admin user to cause the a
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Routine
LOW 2.7UPGRADEUPGRADEUPGRADE
CVE-2026-11734 is a low-severity flaw (CVSS 2.7) affecting mr70 firmware, mr90 firmware, ms70 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A buffer overflow vulnerability in the listed NETGEAR models allows an authenticated admin user to cause the affected device to become temporarily unavailable.
Last updated 2026-10-23 · 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 mr70 firmware UPGRADE
Affected: < 1.0.4.48
Fixed in: 1.0.4.48
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 mr90 firmware UPGRADE
Affected: < 1.0.2.46
Fixed in: 1.0.2.46
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 ms70 firmware UPGRADE
Affected: <= 1.0.4.48
Fixed in: newer than 1.0.4.48
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 ms90 firmware UPGRADE
Affected: < 1.0.2.46
Fixed in: 1.0.2.46
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 rax41 firmware UPGRADE
Affected: < 1.1.6.36
Fixed in: 1.1.6.36
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 rax41v2 firmware UPGRADE
Affected: < 1.1.6.36
Fixed in: 1.1.6.36
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-2026-11734?
mr70 firmware: upgrade to 1.0.4.48; mr90 firmware: upgrade to 1.0.2.46; ms70 firmware: upgrade to newer than 1.0.4.48. Exact commands for each OS are on this page.
Is CVE-2026-11734 being exploited?
CVE-2026-11734 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-2026-11734 affect?
CVE-2026-11734 affects mr70 firmware, mr90 firmware, ms70 firmware. Severity is low (CVSS 2.7). A buffer overflow vulnerability in the listed NETGEAR models allows an authenticated admin user to cause the affected device to become temporarily unavailable.
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