CVE-2026-111229
High
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.
SeverityHigh
CVSS7.2
Exploit probability—
ProductpfSense CE
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-78OS command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Netgate pfSense CE | 2.7.0 ≤ v ≤ 2.9.0 | — |
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