# CVE-2025-55893: Command injection in n/a

> Attackers can execute arbitrary commands on TOTOLINK N200RE routers via the hostName parameter in setOpModeCfg.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A: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:** 15 Dec 2025
- **Updated:** 15 Dec 2025
- **Also known as:** GHSA-96fj-xf34-6gmc

## What is CVE-2025-55893?

CVE-2025-55893 is a medium-severity command injection vulnerability in n/a, published on 15 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

TOTOLINK N200RE V9.3.5u.6437_B20230519 is vulnerable to command Injection in setOpModeCfg via hostName.

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

## Which versions are affected by CVE-2025-55893?

It affects 1 product.


Products: Totolink N200re Firmware.

## How do I fix CVE-2025-55893?

No fix has been published for CVE-2025-55893 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-55893 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55893 exists.

## Other vulnerabilities in n/a

- [CVE-2024-0296](https://insights.sbomify.com/CVE-2024-0296/): Totolink N200RE cstecgi.cgi NTPSyncWithHost os command injection (high 7.3)
- [CVE-2024-0297](https://insights.sbomify.com/CVE-2024-0297/): Totolink N200RE cstecgi.cgi UploadFirmwareFile os command injection (high 7.3)
- [CVE-2024-0298](https://insights.sbomify.com/CVE-2024-0298/): Totolink N200RE cstecgi.cgi setDiagnosisCfg os command injection (high 7.3)
- [CVE-2024-0299](https://insights.sbomify.com/CVE-2024-0299/): Totolink N200RE cstecgi.cgi setTracerouteCfg os command injection (high 7.3)
- [CVE-2024-0997](https://insights.sbomify.com/CVE-2024-0997/): Totolink N200RE cstecgi.cgi setOpModeCfg stack-based overflow (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-55893 and fix it if it is affected.

What it is: CVE-2025-55893 is a medium-severity command injection vulnerability in n/a, published on 15 Dec 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-2025-55893 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-2025-55893/ (Markdown: https://insights.sbomify.com/CVE-2025-55893/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-55893
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-55893
- OSV: https://osv.dev/vulnerability/CVE-2025-55893

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-55893/
Summaries are generated and may contain mistakes; the official description above is the record.