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CVE-2026-111216 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://abraxaslabs.tech/research/pfsense-ce-leftovers	[email protected]	Issue Tracking
https://github.com/abraxas/pfsense-gw-ipv6-zone	[email protected]	Third Party Advisory
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/gwlb.inc#L535	[email protected]	Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/util.inc#L1418	[email protected]	Product
https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-gateway-monitor-ip	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]

Affected Products

Product	Versions
pfsense pfsense	<= 2.9.0
CPE cpe:2.3:a:pfsense:pfsense:::::community:::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Oct 26, 2026	CVE Modified	CISA-ADP
Oct 19, 2026	Initial Analysis	[email protected]
Oct 15, 2026	New CVE Received	[email protected]