# CVE-2025-45042: Command injection in n/a

> Attackers can execute arbitrary commands on Tenda AC9 routers if the Telnet function is enabled.

- **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:** 5 May 2025
- **Updated:** 5 May 2025
- **Also known as:** GHSA-m46c-2xgf-gfrv

## What is CVE-2025-45042?

CVE-2025-45042 is a critical command injection vulnerability in Tenda Ac9 Firmware, published on 5 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Tenda AC9 v15.03.05.14 was discovered to contain a command injection vulnerability via the Telnet function.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2025-45042?

It affects 1 product.


Products: Tenda Ac9 Firmware.

## How do I fix CVE-2025-45042?

No fix has been published for CVE-2025-45042 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-45042 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-45042 exists.

## Other vulnerabilities in Tenda Ac9 Firmware

- [CVE-2025-44872](https://insights.sbomify.com/CVE-2025-44872/): Command injection in n/a (critical 9.8)
- [CVE-2025-44877](https://insights.sbomify.com/CVE-2025-44877/): Command injection in n/a (critical 9.8)
- [CVE-2025-45427](https://insights.sbomify.com/CVE-2025-45427/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-45428](https://insights.sbomify.com/CVE-2025-45428/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-45429](https://insights.sbomify.com/CVE-2025-45429/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-45042 and fix it if it is affected.

What it is: CVE-2025-45042 is a critical command injection vulnerability in Tenda Ac9 Firmware, published on 5 May 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-2025-45042 exists.

Affected product: Tenda Ac9 Firmware. 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-2025-45042/ (Markdown: https://insights.sbomify.com/CVE-2025-45042/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-45042
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-45042
- OSV: https://osv.dev/vulnerability/CVE-2025-45042

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-45042/
Summaries are generated and may contain mistakes; the official description above is the record.