# CVE-2025-11550: Tenda W12 HTTP Request modules wifiScheduledSet null pointer dereference

> Remote attackers can cause a denial of service on Tenda W12 routers by triggering a null pointer dereference in the wifiScheduledSet function.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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:** 9 Oct 2025
- **Updated:** 24 Feb 2026
- **Also known as:** GHSA-jvm5-jgxh-5564

## What is CVE-2025-11550?

CVE-2025-11550 is a high-severity vulnerability in Tenda W12, published on 9 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in Tenda W12 3.0.0.6(3948). The impacted element is the function wifiScheduledSet of the file /goform/modules of the component HTTP Request Handler. The manipulation of the argument wifiScheduledSet results in null pointer dereference. The attack may be performed from remote. The exploit has been made public and could be used.

Weakness: CWE-476 (NULL Pointer Dereference), CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2025-11550?

It affects 1 product.


Products: Tenda W12 Firmware.

## How do I fix CVE-2025-11550?

No fix has been published for CVE-2025-11550 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11550 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11550 exists.

## Other vulnerabilities in Tenda W12

- [CVE-2025-11549](https://insights.sbomify.com/CVE-2025-11549/): Tenda W12 HTTP Request modules wifiMacFilterSet stack-based overflow (high 8.7)
- [CVE-2025-3693](https://insights.sbomify.com/CVE-2025-3693/): Tenda W12 httpd cgiWifiRadioSet stack-based overflow (high 8.7)
- [CVE-2025-9778](https://insights.sbomify.com/CVE-2025-9778/): Tenda W12 Administrative shadow hard-coded credentials (low 1.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11550 and fix it if it is affected.

What it is: CVE-2025-11550 is a high-severity vulnerability in Tenda W12, published on 9 Oct 2025. 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-2025-11550 exists.

Affected product: Tenda W12. 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-2025-11550/ (Markdown: https://insights.sbomify.com/CVE-2025-11550/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11550
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11550
- OSV: https://osv.dev/vulnerability/CVE-2025-11550

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-11550/
Summaries are generated and may contain mistakes; the official description above is the record.