# CVE-2026-9216: Insufficient input validation vulnerability exists in certain NETGEAR RAX Models

> A network-adjacent attacker can crash the management UI of NETGEAR RAX routers, causing a denial of service for administrative access.

- **Severity:** Low 1.2 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/AU:Y/R:A/V:D/RE:L/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Sep 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-j39v-qjh2-5wqg

## What is CVE-2026-9216?

CVE-2026-9216 is a low-severity denial of service vulnerability in NETGEAR RAX30, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2026-9216?

It affects 5 products.


Products: Netgear Rax30 Firmware, Netgear Rax35 Firmware, Netgear Rax38 Firmware, Netgear Rax40 Firmware, Netgear Raxe300 Firmware.

## How do I fix CVE-2026-9216?

No fix has been published for CVE-2026-9216 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9216 being exploited?

There is no known exploitation of CVE-2026-9216 in the wild and no public exploit code.

## Other vulnerabilities in NETGEAR RAX30

- [CVE-2025-44658](https://insights.sbomify.com/CVE-2025-44658/): File upload in n/a (critical 9.8)
- [CVE-2023-1327](https://insights.sbomify.com/CVE-2023-1327/): Auth bypass in Netgear RAX30 (AX2400) (critical 9.8)
- [CVE-2023-27852](https://insights.sbomify.com/CVE-2023-27852/): Memory corruption in NETGEAR Nighthawk WiFi6 Router (critical 9.8)
- [CVE-2023-27853](https://insights.sbomify.com/CVE-2023-27853/): Other in NETGEAR Nighthawk WiFi6 Router (critical 9.8)
- [CVE-2023-51635](https://insights.sbomify.com/CVE-2023-51635/): NETGEAR RAX30 fing_dil Stack-based Buffer Overflow Remote Code Execution Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9216 and fix it if it is affected.

What it is: CVE-2026-9216 is a low-severity denial of service vulnerability in NETGEAR RAX30, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-9216 in the wild and no public exploit code.

Affected product: NETGEAR RAX30. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-9216/ (Markdown: https://insights.sbomify.com/CVE-2026-9216/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9216
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9216
- OSV: https://osv.dev/vulnerability/CVE-2026-9216

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9216/
Summaries are generated and may contain mistakes; the official description above is the record.