High 7.2Published Oct 15, 2026

CVE-2026-111217Netgate pfSense CE through 2.9.0 OS Command Injection via CARP VHID

Updated under an hour ago (Oct 28, 2026, 10:40 AM ET)

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It affects Netgate pfSense CE and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 6.96%, higher than 94% of scored CVEs.

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Every CVE for Netgate pfSense CE

Exploited in the last 30 days

Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Virtual IP edit privileges to execute commands as root by storing an unvalidated CARP VHID. Attackers can supply a VHID containing shell metacharacters that executes via interface_ipalias_configure() ifconfig calls or get_carp_interface_status() when CARP status is rendered.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 6.96% (percentile 94)
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Netgate pfSense CE netgate:pfsense_ce (from the name)	through 2.9.0	CNA record
pfsense pfsense pfsense:pfsense	through 2.9.0	NVD

References

References

https://github.com/abraxas/pfsense-carp-vhid	exploit, technical-description, third-party-advisory
https://abraxaslabs.tech/research/pfsense-ce-leftovers	technical-description, issue-tracking
https://abraxaslabs.tech/research/pfsense-carp-vhid	technical-description, exploit, issue-tracking, mitigation
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/pfSense/include/www/firewall_virtual_ip.inc#L200	technical-description, product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L3236-L3238	technical-description, product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/pfsense-utils.inc#L794	technical-description, product
https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-carp-vhid	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.