# CVE-2025-65202: Command injection in n/a

> Authenticated attackers can execute arbitrary OS commands with root privileges on TRENDnet TEW-657BRM routers via setup.cgi parameters.

- **Severity:** High 8.0 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Nov 2025
- **Updated:** 28 Nov 2025
- **Also known as:** GHSA-m8p9-q9xx-54j2

## What is CVE-2025-65202?

CVE-2025-65202 is a high-severity command injection vulnerability in n/a, published on 26 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

TRENDnet TEW-657BRM 1.00.1 has an authenticated remote OS command injection vulnerability in the setup.cgi binary, exploitable via the HTTP parameters "command", "todo", and "next_file," which allows an attacker to execute arbitrary commands with root privileges.

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

## Which versions are affected by CVE-2025-65202?

It affects 1 product.


Products: Trendnet Tew-657brm Firmware.

## How do I fix CVE-2025-65202?

No fix has been published for CVE-2025-65202 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-65202 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-65202 exists.

## Other vulnerabilities in n/a

- [CVE-2026-5349](https://insights.sbomify.com/CVE-2026-5349/): Trendnet TEW-657BRM setup.cgi add_apcdb stack-based overflow (high 8.7)
- [CVE-2026-5350](https://insights.sbomify.com/CVE-2026-5350/): Trendnet TEW-657BRM setup.cgi update_pcdb stack-based overflow (high 8.7)
- [CVE-2026-5351](https://insights.sbomify.com/CVE-2026-5351/): Trendnet TEW-657BRM setup.cgi add_wps_client os command injection (medium 5.3)
- [CVE-2026-5352](https://insights.sbomify.com/CVE-2026-5352/): Trendnet TEW-657BRM setup.cgi edit os command injection (medium 5.3)
- [CVE-2026-5353](https://insights.sbomify.com/CVE-2026-5353/): Trendnet TEW-657BRM setup.cgi ping_test os command injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-65202 and fix it if it is affected.

What it is: CVE-2025-65202 is a high-severity command injection vulnerability in n/a, published on 26 Nov 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-2025-65202 exists.

Affected product: n/a. 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-2025-65202/ (Markdown: https://insights.sbomify.com/CVE-2025-65202/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-65202
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-65202
- OSV: https://osv.dev/vulnerability/CVE-2025-65202

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-65202/
Summaries are generated and may contain mistakes; the official description above is the record.