pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in services_captiveportal_hasync.php that allows users with only the Captive Portal HA privilege to execute commands as root. Attackers can set backwardsyncip to a malicious XMLRPC server returning connected_users with shell metacharacters in ip or mac fields, which captiveportal_load_pfctl passes unescaped to a pfctl shell command.
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Fixes

Solution

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Workaround

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History

Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description pfSense CE 2.7.0 through 2.9.0 contains a command injection vulnerability in services_captiveportal_hasync.php that allows users with only the Captive Portal HA privilege to execute commands as root. Attackers can set backwardsyncip to a malicious XMLRPC server returning connected_users with shell metacharacters in ip or mac fields, which captiveportal_load_pfctl passes unescaped to a pfctl shell command.
Title Netgate pfSense CE 2.7.0 through 2.9.0 Command Injection via Captive Portal HA Sync
First Time appeared Netgate
Netgate pfsense
Weaknesses CWE-78
CPEs cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*
Vendors & Products Netgate
Netgate pfsense
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T18:46:30.058Z

Reserved: 2026-10-15T18:21:23.312Z

Link: CVE-2026-111229

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T19:17:35.813

Modified: 2026-10-15T19:17:35.813

Link: CVE-2026-111229

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses