# CVE-2025-2957: TRENDnet TEW-411BRP+ HTTP Request httpd sub_401DB0 null pointer dereference

> A local attacker can cause a denial of service in TRENDnet TEW-411BRP+ routers via a null pointer dereference in the HTTP handler.

- **Severity:** High 7.1 (`CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Mar 2025
- **Updated:** 1 Apr 2025
- **Also known as:** GHSA-h83r-q973-p4xc

## What is CVE-2025-2957?

CVE-2025-2957 is a high-severity vulnerability in TRENDnet TEW-411BRP+, published on 30 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in TRENDnet TEW-411BRP+ 2.07. It has been classified as problematic. Affected is the function sub_401DB0 of the file /usr/sbin/httpd of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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

## Which versions are affected by CVE-2025-2957?


## How do I fix CVE-2025-2957?

No fix has been published for CVE-2025-2957 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-2957 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2957 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-2957 and fix it if it is affected.

What it is: CVE-2025-2957 is a high-severity vulnerability in TRENDnet TEW-411BRP+, published on 30 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2957 exists.

Affected product: TRENDnet TEW-411BRP+. 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-2025-2957/ (Markdown: https://insights.sbomify.com/CVE-2025-2957/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-2957
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-2957
- OSV: https://osv.dev/vulnerability/CVE-2025-2957

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-2957/
Summaries are generated and may contain mistakes; the official description above is the record.