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CVE-2026-111223 Details

Description

Netgate pfSense CE 2.7.0 through 2.9.0 contains a configuration injection vulnerability that allows authenticated users with IPsec Mobile privileges to execute commands as root via the login_banner field. Attackers can submit a single-line banner containing '}' to escape the unquoted strongswan.conf attr value and define charon.start-scripts entries that charon executes as root on restart.

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

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://abraxaslabs.tech/research/pfsense-ce-leftovers	[email protected]	Issue Tracking
https://abraxaslabs.tech/research/pfsense-ipsec-login-banner	[email protected]	ExploitIssue Tracking
https://github.com/abraxas/pfsense-ipsec-login-banner	[email protected]	MitigationThird Party Advisory
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1361-L1388	[email protected]	Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1842-L1845	[email protected]	Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_ipsec_mobile.php#L269-L273	[email protected]	Product
https://github.com/pfsense/pfsense/commit/27a52d0807	[email protected]	Patch
https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-ipsec-mobile-login-banner	[email protected]	Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-74	Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')	[email protected]

Affected Products

Product	Versions
pfsense pfsense	>= 2.7.0, <= 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 19, 2026	Initial Analysis	[email protected]
Oct 15, 2026	CVE Modified	CISA-ADP
Oct 15, 2026	New CVE Received	[email protected]