CVE-2026-111214
Netgate pfSense CE 2.7.0 through 2.9.0 OS Command Injection via interfaces_qinq_edit.php
CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th
Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with QinQ edit privilege to run commands by storing an unvalidated parent interface name. Attackers can save a crafted 'if' value, then edit the QinQ entry so it is interpolated into ifconfig shell commands, executing commands as root.
| CWE | CWE-78 |
| Vendor | netgate |
| Product | pfsense ce |
| Published | Oct 15, 2026 |
Stay Ahead of the Next One
Get instant alerts for netgate pfsense ce
Be the first to know when new high vulnerabilities affecting netgate pfsense ce are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Netgate / pfSense CE
2.7.0 ≤ 2.9.0
References
github.com: https://github.com/abraxas/pfsense-qinq-parent-if abraxaslabs.tech: https://abraxaslabs.tech/research/pfsense-ce-leftovers abraxaslabs.tech: https://abraxaslabs.tech/research/pfsense-qinq-parent-if github.com: https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/interfaces_qinq_edit.php#L136 github.com: https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/interfaces_qinq_edit.php#L212 github.com: https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L620 vulncheck.com: https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-os-command-injection-via-interfaces-qinq-edit-php
Credits
Abraxas Labs