# CVE-2026-0408: Path traversal vulnerability in Netgear WiFi Range Extenders

> An attacker with LAN access can exploit a path traversal flaw to read sensitive credentials from the router's webproc file.

- **Severity:** Medium 6.1 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/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:** 13 Jan 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-rhrj-763h-99fq

## What is CVE-2026-0408?

CVE-2026-0408 is a medium-severity path traversal vulnerability in NETGEAR EX2800, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A path traversal vulnerability in NETGEAR WiFi range extenders allows
 an attacker with LAN authentication to access the router's IP and 
review the contents of the dynamically generated webproc file, which 
records the username and password submitted to the router GUI.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2026-0408?

It affects 4 products.


Products: Netgear Ex2800 Firmware, Netgear Ex3110 Firmware, Netgear Ex5000 Firmware, Netgear Ex6110 Firmware.

## How do I fix CVE-2026-0408?

No fix has been published for CVE-2026-0408 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0408 being exploited?

There is no known exploitation of CVE-2026-0408 in the wild and no public exploit code.

## Other vulnerabilities in NETGEAR EX2800

- [CVE-2026-0407](https://insights.sbomify.com/CVE-2026-0407/): Authentication bypass in NETGEAR WiFi Range Extenders via network adjacent attacks (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0408 and fix it if it is affected.

What it is: CVE-2026-0408 is a medium-severity path traversal vulnerability in NETGEAR EX2800, published on 13 Jan 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-2026-0408 in the wild and no public exploit code.

Affected product: NETGEAR EX2800. 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-2026-0408/ (Markdown: https://insights.sbomify.com/CVE-2026-0408/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0408
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0408
- OSV: https://osv.dev/vulnerability/CVE-2026-0408

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0408/
Summaries are generated and may contain mistakes; the official description above is the record.