CVE-2026-9216: rax30 Stack Overflow — Fix

Description

An insufficient input validation vulnerability in the listed NETGEAR RAX series models allows a network-adjacent attacker having network access (such as WiFi credentials) to crash the router's management UI. There is no confidentiality or integrity impact. A crash of the router's management UI does not impact the availability of the router's core services like WiFi network.

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CVSS v3.1 Score

3.5

LOW

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploit Prediction

0.0023

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
netgear	rax30_firmware	< 1.0.9.92
netgear	rax30	All
netgear	rax35_firmware	< 1.0.10.72
netgear	rax35	All
netgear	rax38_firmware	< 1.0.6.106
netgear	rax38	All
netgear	rax40_firmware	< 1.0.6.106
netgear	rax40	All
netgear	raxe300_firmware	< 1.0.10.72
netgear	raxe300	All

References

Advisories & Patches

https://kb.netgear.com/000070912/September-2026-NETGEAR-Security-Advisory

Other References

https://www.netgear.com/support/product/rax30 https://www.netgear.com/support/product/rax35 https://www.netgear.com/support/product/rax38 https://www.netgear.com/support/product/rax40 https://www.netgear.com/support/product/raxe300

Frequently Asked Questions

What is CVE-2026-9216? +

An insufficient input validation vulnerability in the listed NETGEAR RAX series models allows a network-adjacent attacker having network access (such as WiFi credentials) to crash the router's management UI. There is no confidentiality or integrity impact. A crash of the router's management UI does not impact the availability of the router's core services like WiFi network. It has a CVSS v3.1 base score of 3.5 (LOW).

How severe is CVE-2026-9216? +

CVE-2026-9216 has a CVSS v3.1 score of 3.5 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0023, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-9216? +

CVE-2026-9216 affects products from netgear, specifically: rax30, rax30_firmware, rax35, rax35_firmware, rax38, rax38_firmware, rax40, rax40_firmware, raxe300, raxe300_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-9216? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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