# CVE-2026-9344: Edimax EW-7438RPn webs formWpsStart stack-based overflow

> Remote attackers can trigger a stack-based buffer overflow in the Edimax EW-7438RPn web interface via the pinCode or wlan-url parameters, potentially executing arbitrary code.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 May 2026
- **Updated:** 26 May 2026
- **Also known as:** GHSA-ccvm-7xq8-8rx8

## What is CVE-2026-9344?

CVE-2026-9344 is a high-severity memory corruption vulnerability in Edimax EW-7438RPn, published on 24 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A security vulnerability has been detected in Edimax EW-7438RPn up to 1.31. The impacted element is an unknown function of the file /goform/formWpsStart of the component webs. Such manipulation of the argument pinCode/wlan-url leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-121 (Stack-based Buffer Overflow), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2026-9344?


## How do I fix CVE-2026-9344?

No fix has been published for CVE-2026-9344 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9344 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9344 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9344 and fix it if it is affected.

What it is: CVE-2026-9344 is a high-severity memory corruption vulnerability in Edimax EW-7438RPn, published on 24 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9344 exists.

Affected product: Edimax EW-7438RPn. 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-2026-9344/ (Markdown: https://insights.sbomify.com/CVE-2026-9344/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9344
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9344
- OSV: https://osv.dev/vulnerability/CVE-2026-9344

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9344/
Summaries are generated and may contain mistakes; the official description above is the record.