# CVE-2026-41924: WDR201A WiFi Extender OS Command Injection via makeRequest.cgi

> Unauthenticated remote attackers can execute arbitrary shell commands on the WDR201A WiFi Extender via OS command injection in makeRequest.cgi.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 May 2026
- **Updated:** 11 May 2026
- **Also known as:** GHSA-fchj-4xr4-27f8

## What is CVE-2026-41924?

CVE-2026-41924 is a critical command injection vulnerability in Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains an OS command injection vulnerability in the makeRequest.cgi binary that allows unauthenticated remote attackers to execute arbitrary shell commands by injecting malicious input into the set_time or StartSniffer functions. Attackers can craft a POST request with specially crafted ampersand-delimited parameters to bypass input sanitization and execute commands with a maximum length of 31 bytes through the date command or channel parameter processing.

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

## Which versions are affected by CVE-2026-41924?


## How do I fix CVE-2026-41924?

No fix has been published for CVE-2026-41924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-41924 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41924 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-41924 and fix it if it is affected.

What it is: CVE-2026-41924 is a critical command injection vulnerability in Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender, published on 4 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41924 exists.

Affected product: Shenzhen Yipu Commercial and Trading Co., Ltd WDR201A WiFi Extender. 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-2026-41924/ (Markdown: https://insights.sbomify.com/CVE-2026-41924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-41924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41924
- OSV: https://osv.dev/vulnerability/CVE-2026-41924

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-41924/
Summaries are generated and may contain mistakes; the official description above is the record.