# CVE-2025-28035: Command injection in n/a

> Attackers can execute arbitrary commands remotely on TOTOLINK A830R 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:** 22 Apr 2025
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-fg9r-f95c-6rgw

## What is CVE-2025-28035?

CVE-2025-28035 is a critical command injection vulnerability in n/a, published on 22 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

TOTOLINK A830R V4.1.2cu.5182_B20201102 was 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-2025-28035?

It affects 6 products.


Products: Totolink A3000ru Firmware, Totolink A3100r Firmware, Totolink A800r Firmware, Totolink A810r Firmware, Totolink A830r Firmware, Totolink A950rg Firmware.

## How do I fix CVE-2025-28035?

No fix has been published for CVE-2025-28035 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-28035 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-28035 exists.

## Other vulnerabilities in n/a

- [CVE-2025-28034](https://insights.sbomify.com/CVE-2025-28034/): Command injection in n/a (critical 9.8)
- [CVE-2025-28036](https://insights.sbomify.com/CVE-2025-28036/): Command injection in n/a (critical 9.8)
- [CVE-2022-26206](https://insights.sbomify.com/CVE-2022-26206/): Command injection in n/a (critical 9.8)
- [CVE-2022-26207](https://insights.sbomify.com/CVE-2022-26207/): Command injection in n/a (critical 9.8)
- [CVE-2022-26208](https://insights.sbomify.com/CVE-2022-26208/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-28035 and fix it if it is affected.

What it is: CVE-2025-28035 is a critical command injection vulnerability in n/a, published on 22 Apr 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-2025-28035 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-2025-28035/ (Markdown: https://insights.sbomify.com/CVE-2025-28035/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-28035
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-28035
- OSV: https://osv.dev/vulnerability/CVE-2025-28035

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-28035/
Summaries are generated and may contain mistakes; the official description above is the record.