# CVE-2025-28138: Command injection in n/a

> Attackers can execute arbitrary commands remotely on TOTOLINK A800R routers via the setNoticeCfg function without authentication.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Mar 2025
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-gmm6-5vw5-42h2

## What is CVE-2025-28138?

CVE-2025-28138 is a critical command injection vulnerability in n/a, published on 27 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The TOTOLINK A800R V4.1.2cu.5137_B20200730 were found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter.

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

## Which versions are affected by CVE-2025-28138?

It affects 1 product.


Products: Totolink A800r Firmware.

## How do I fix CVE-2025-28138?

No fix has been published for CVE-2025-28138 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-28138 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-28138 exists.

## Other vulnerabilities in n/a

- [CVE-2022-25076](https://insights.sbomify.com/CVE-2022-25076/): Command injection in n/a (critical 9.8)
- [CVE-2022-36611](https://insights.sbomify.com/CVE-2022-36611/): Hardcoded credentials in n/a (high 7.8)
- [CVE-2025-28018](https://insights.sbomify.com/CVE-2025-28018/): Memory corruption in n/a (high 7.3)
- [CVE-2025-28019](https://insights.sbomify.com/CVE-2025-28019/): Memory corruption in n/a (high 7.3)
- [CVE-2025-28020](https://insights.sbomify.com/CVE-2025-28020/): Memory corruption in n/a (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-28138 and fix it if it is affected.

What it is: CVE-2025-28138 is a critical command injection vulnerability in n/a, published on 27 Mar 2025. 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-2025-28138 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-2025-28138/ (Markdown: https://insights.sbomify.com/CVE-2025-28138/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-28138
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-28138
- OSV: https://osv.dev/vulnerability/CVE-2025-28138

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-28138/
Summaries are generated and may contain mistakes; the official description above is the record.