---
id: CVE-2026-111216
title: >-
  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…
summary: >-
  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…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: Netgate
product: pfSense CE
affected:
  - pfsense_ce <= 2.9.0
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:33.907'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111216'
references:
  - url: 'https://abraxaslabs.tech/research/pfsense-ce-leftovers'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/abraxas/pfsense-gw-ipv6-zone'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/gwlb.inc#L535
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/util.inc#L1418
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-gateway-monitor-ip
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T19:25:46.426Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.