# CVE-2026-111216: Netgate pfSense CE through 2.9.0 OS Command Injection via Gateway Monitor IP

> Authenticated users with gateway edit privileges can execute arbitrary commands as root via OS command injection in the Gateway Monitor IP field.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 26 Oct 2026
- **Also known as:** GHSA-j7pj-3cmw-7qqc

## What is CVE-2026-111216?

CVE-2026-111216 is a high-severity command injection vulnerability in Netgate pfSense CE, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with gateway edit privileges to execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Attackers can set a gateway Monitor IP whose unvalidated zone carries a payload, which start_dpinger() passes unescaped to the dpinger shell command when monitoring is applied.

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

## Which versions are affected by CVE-2026-111216?

It affects 1 product.


Products: Pfsense Pfsense.

## How do I fix CVE-2026-111216?

No fix has been published for CVE-2026-111216 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111216 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111216 exists.

## Other vulnerabilities in Netgate pfSense CE

- [CVE-2025-69691](https://insights.sbomify.com/CVE-2025-69691/): Code injection in n/a (critical 9.9)
- [CVE-2023-29974](https://insights.sbomify.com/CVE-2023-29974/): Weak cryptography in n/a (critical 9.8)
- [CVE-2025-69690](https://insights.sbomify.com/CVE-2025-69690/): Deserialization in n/a (critical 9.1)
- [CVE-2021-41282](https://insights.sbomify.com/CVE-2021-41282/): Code injection in n/a (high 8.8)
- [CVE-2016-10709](https://insights.sbomify.com/CVE-2016-10709/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111216 and fix it if it is affected.

What it is: CVE-2026-111216 is a high-severity command injection vulnerability in Netgate pfSense CE, published on 15 Oct 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-2026-111216 exists.

Affected product: Netgate pfSense CE. 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-2026-111216/ (Markdown: https://insights.sbomify.com/CVE-2026-111216/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111216
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111216
- OSV: https://osv.dev/vulnerability/CVE-2026-111216

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111216/
Summaries are generated and may contain mistakes; the official description above is the record.