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CVE-2026-111223

7.2 · HIGH

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…

Published Oct 15, 2026pfsenseCWE-74EPSS 0.75%

Overview

CVE-2026-111223 is a high-severity vulnerability affecting pfsense pfsense. It was published on October 15, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from pfsense. Update pfsense to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
pfsensepfsense2.7.0Affected

References

Refabraxaslabs.tech/research/pfsense-ce-leftoversRefabraxaslabs.tech/research/pfsense-ipsec-login-bannerGitHubgithub.com/abraxas/pfsense-ipsec-login-bannerGitHubgithub.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1361-L1388GitHubgithub.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/ipsec.inc#L1842-L1845GitHubgithub.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/vpn_ipsec_mobile.php#L269-L273GitHubgithub.com/pfsense/pfsense/commit/27a52d0807Refwww.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-ipsec-mobile-login-banner

How CyberStrike helps

Frequently asked questions

What is CVE-2026-111223?

CVE-2026-111223 is a high-severity vulnerability affecting pfsense pfsense. It was published on October 15, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-111223?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-111223?

Check the references section for vendor advisories and patches from pfsense. Update pfsense to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-111223?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-111223 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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