CVE-2026-111229CWE-78command-injection

CVE-2026-111229

High · published October 15, 2026

CVSS v3.1
7.2
EPSS
6%
Percentile
93.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · 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
EPSS
0.06367 · 93.6th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-15T23:17Z
References (5)
https://abraxaslabs.tech/research/pfsense-ce-leftovers · [email protected]https://github.com/abraxas/pfsense-cp-ha-pfctl · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/captiveportal.inc#L2958-L2966 · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_captiveportal_hasync.php#L106-L140 · [email protected]https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-command-injection-via-captive-portal-ha-sync · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 6%
    epss
  • 15 OCT 18:46Z
    Netgate pfSense CE 2.7.0 through 2.9.0 Command Injection via Captive Portal HA Sync
    cvelistv5
  • 15 OCT 18:46Z
    Netgate pfSense CE 2.7.0 through 2.9.0 Command Injection via Captive Portal HA Sync
    cvelistv5