# CVE-2025-14586: TOTOLINK X5000R cstecgi.cgi snprintf os command injection

> Remote attackers can execute arbitrary OS commands on TOTOLINK X5000R routers via the cstecgi.cgi exportOvpn endpoint.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Dec 2025
- **Updated:** 24 Feb 2026
- **Also known as:** GHSA-g5qq-5f56-7h93

## What is CVE-2025-14586?

CVE-2025-14586 is a medium-severity command injection vulnerability in Totolink X5000r Firmware, published on 13 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was determined in TOTOLINK X5000R 9.1.0cu.2089_B20211224. Affected by this issue is the function snprintf of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. This manipulation of the argument User causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

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

## Which versions are affected by CVE-2025-14586?

It affects 1 product.


Products: Totolink X5000r Firmware.

## How do I fix CVE-2025-14586?

No fix has been published for CVE-2025-14586 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-14586 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14586 exists.

## Other vulnerabilities in Totolink X5000r Firmware

- [CVE-2025-70327](https://insights.sbomify.com/CVE-2025-70327/): Command injection in n/a (critical 9.8)
- [CVE-2025-13184](https://insights.sbomify.com/CVE-2025-13184/): Auth bypass in X5000R's (AX1800 router) (critical 9.8)
- [CVE-2024-42737](https://insights.sbomify.com/CVE-2024-42737/): Command injection in n/a (critical 9.8)
- [CVE-2024-42745](https://insights.sbomify.com/CVE-2024-42745/): Command injection in n/a (critical 9.8)
- [CVE-2024-42748](https://insights.sbomify.com/CVE-2024-42748/): Command injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14586 and fix it if it is affected.

What it is: CVE-2025-14586 is a medium-severity command injection vulnerability in Totolink X5000r Firmware, published on 13 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14586 exists.

Affected product: Totolink X5000r 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-2025-14586/ (Markdown: https://insights.sbomify.com/CVE-2025-14586/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14586
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14586
- OSV: https://osv.dev/vulnerability/CVE-2025-14586

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-14586/
Summaries are generated and may contain mistakes; the official description above is the record.