# CVE-2026-111220: Netgate pfSense CE through 2.9.0 Crontab Injection via PPP Periodic Reset ptpid

> Authenticated users with PPP edit privileges can inject commands into crontab to execute arbitrary code as root on pfSense CE.

- **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:** 15 Oct 2026
- **Also known as:** GHSA-cx43-pf3x-hc6x

## What is CVE-2026-111220?

CVE-2026-111220 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

pfSense CE through 2.9.0 contains a crontab injection vulnerability in interfaces_ppps_edit.php that allows authenticated users to execute commands as root by injecting newlines into the ptpid or reset hour/minute fields. Attackers holding the 'WebCfg - Interfaces: PPPs: Edit' privilege can submit crafted POST values that configure_cron() writes unescaped into /etc/crontab, running arbitrary root commands on schedule.

Weakness: CWE-93 (Improper Neutralization of CRLF Sequences)

## Which versions are affected by CVE-2026-111220?


## How do I fix CVE-2026-111220?

No fix has been published for CVE-2026-111220 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111220 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111220 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111220 and fix it if it is affected.

What it is: CVE-2026-111220 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-2026-111220 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-2026-111220/ (Markdown: https://insights.sbomify.com/CVE-2026-111220/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111220
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111220
- OSV: https://osv.dev/vulnerability/CVE-2026-111220

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111220/
Summaries are generated and may contain mistakes; the official description above is the record.