# CVE-2025-14558: Remote code execution via ND6 Router Advertisements

> Remote attackers can execute arbitrary shell commands on FreeBSD systems by sending malicious ND6 Router Advertisement messages.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Mar 2026
- **Updated:** 10 Mar 2026
- **Also known as:** GHSA-m67m-4jp2-2c59

## What is CVE-2025-14558?

CVE-2025-14558 is a high-severity command injection vulnerability in Freebsd Freebsd, published on 9 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The rtsol(8) and rtsold(8) programs do not validate the domain search list options provided in router advertisement messages; the option body is passed to resolvconf(8) unmodified.

resolvconf(8) is a shell script which does not validate its input.  A lack of quoting meant that shell commands pass as input to resolvconf(8) may be executed.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-14558?

It affects 1 product.


Products: Freebsd Freebsd.

## How do I fix CVE-2025-14558?

No fix has been published for CVE-2025-14558 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-14558 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14558 exists.

Public exploit code:

- FreeBSD rtsold DNSSL Command Injection (RCE) (github_poc): https://github.com/JohannesLks/CVE-2025-14558
- FreeBSD rtsold/rtsol DNSSL Command Injection (metasploit)
- CVE-2025-14558 (github_poc): https://github.com/rockmelodies/Blackash-CVE-2025-14558
- FreeBSD rtsold 15.x - Remote Code Execution via DNSSL (exploitdb)

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-14558 and fix it if it is affected.

What it is: CVE-2025-14558 is a high-severity command injection vulnerability in Freebsd Freebsd, published on 9 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-14558 exists.

Affected product: Freebsd Freebsd. 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-2025-14558/ (Markdown: https://insights.sbomify.com/CVE-2025-14558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-14558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14558
- OSV: https://osv.dev/vulnerability/CVE-2025-14558

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-14558/
Summaries are generated and may contain mistakes; the official description above is the record.