← Vulnerability feed

Vulnerability record · CVE-2026-111218 · published 15 October 2026

CVE-2026-111218: Pfsense os command injection vulnerability

Pfsense · Pfsense

Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Traffic Shaper Limiters privileges to execute root commands by tampering with the limiter number field. Attackers can submit a malicious hidden 'number' value when editing a limiter, then delete it so delete_queue() passes the unquoted value to dnctl via /bin/sh as root.

8.6 CVSS 4.0 High EPSS 8.6% · top 4.8% CWE-78 · OS command injection
8.6CVSS 4.0 base score
8.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 1 tagged exploit
20 Oct 2026Last modified by NVD

Description

Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Traffic Shaper Limiters privileges to execute root commands by tampering with the limiter number field. Attackers can submit a malicious hidden 'number' value when editing a limiter, then delete it so delete_queue() passes the unquoted value to dnctl via /bin/sh as root.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://abraxaslabs.tech/research/pfsense-ce-leftovers Issue Tracking
https://abraxaslabs.tech/research/pfsense-limiter-number ExploitIssue TrackingMitigation
https://github.com/abraxas/pfsense-limiter-number Third Party Advisory
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/shaper.inc#L3820-L3821 Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/shaper.inc#L3959 Product
https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-os-command-injection-via-traffic-shaper-limi Third Party Advisory

Track CVE-2026-111218 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2025-69691Pfsense improper access control vulnerabilityNetgate pfSense CE 2.8.0 allows code execution in the XMLRPC API via pfsense.exec_php. NOTE: the Supplier disputes this because the API call is only …EPSS 0.68%9.8CVE-2023-29974Pfsense weak password requirements vulnerabilityAn issue discovered in Pfsense CE version 2.6.0 allows attackers to compromise user accounts via weak password requirements.EPSS 2.2%9.8CVE-2023-27100Netgate pfsense plus improper restriction of authentication attempts vulnerabilityImproper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software…EPSS 9.9%9.1CVE-2025-69690Pfsense deserialization of untrusted data vulnerabilityNetgate pfSense CE 2.7.2 allows code execution by using the module installer with a backup file with a serialized PHP object containing the post_rebo…EPSS 0.81%8.8CVE-2021-41282pfSense diag_routes.php sed injection allows arbitrary file writediag_routes.php in pfSense 2.5.2 passes netstat output through sed without preventing sed-specific code injection, even though escapeshellarg is used…EPSS 87%analysed8.8CVE-2016-10709Pfsense os command injection vulnerabilitypfSense before 2.3 allows remote authenticated users to execute arbitrary OS commands via a '|' character in the status_rrd_graph_img.php graph param…EPSS 34%8.6CVE-2026-111217Pfsense os command injection vulnerabilityNetgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Virtual IP edit privileges to ex…EPSS 7.0%8.6CVE-2026-111223Pfsense injection vulnerabilityNetgate pfSense CE 2.7.0 through 2.9.0 contains a configuration injection vulnerability that allows authenticated users with IPsec Mobile privileges …EPSS 0.75%

Source: NIST National Vulnerability Database (record CVE-2026-111218), CISA KEV, FIRST EPSS (scores of 2026-11-13). This page is refreshed as NVD updates the record.