# CVE-2026-9343: Edimax EW-7438RPn webs formWpsStart os command injection

> Remote attackers can execute arbitrary OS commands via the pinCode argument in the formWpsStart function of Edimax EW-7438RPn devices.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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:** 23 May 2026
- **Updated:** 26 May 2026
- **Also known as:** GHSA-5fv5-xxvr-vx32

## What is CVE-2026-9343?

CVE-2026-9343 is a medium-severity command injection vulnerability in Edimax EW-7438RPn, published on 23 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A weakness has been identified in Edimax EW-7438RPn up to 1.31. The affected element is the function formWpsStart of the file /goform/formWpsStart of the component webs. This manipulation of the argument pinCode causes os command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-9343?


## How do I fix CVE-2026-9343?

No fix has been published for CVE-2026-9343 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9343 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9343 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9343 and fix it if it is affected.

What it is: CVE-2026-9343 is a medium-severity command injection vulnerability in Edimax EW-7438RPn, published on 23 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-2026-9343 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-2026-9343/ (Markdown: https://insights.sbomify.com/CVE-2026-9343/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9343
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9343
- OSV: https://osv.dev/vulnerability/CVE-2026-9343

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9343/
Summaries are generated and may contain mistakes; the official description above is the record.