CVE-2026-111217: high-severity vulnerability in Netgate pfSense CE
Netgate pfSense CE through 2.9.0 OS Command Injection via CARP VHID
Published
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.6epss 7.1%
exploitation probability
7.1%top 6% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Netgate · pfSense CEpublic PoCs found — 1
cve_referencegithub.com/abraxas/pfsense-carp-vhidunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Netgate pfSense CE
In the same product, most dangerous first.
CVE-2025-34175MEDIUMNetgate pfSense CE Suricata package v7.0.8_2 Reflected Cross-Site ScriptingEPSS 19.1%CVE-2025-34176MEDIUMNetgate pfSense CE Suricata Package v7.0.8_2 Directory Traversal Information DisclosureEPSS 17.3%CVE-2025-34174MEDIUMNetgate pfSense CE Status_Traffic_Totals Package v2.3.2_7 Stored Cross-Site ScriptingEPSS 13.0%CVE-2026-111214HIGHNetgate pfSense CE 2.7.0 through 2.9.0 OS Command Injection via interfaces_qinq_edit.phpEPSS 8.6%CVE-2026-111218HIGHNetgate pfSense CE 2.7.0 through 2.9.0 OS Command Injection via Traffic Shaper LimitersEPSS 8.4%CVE-2026-111215HIGHNetgate pfSense CE through 2.9.0 OS Command Injection via Wireless Parent InterfaceEPSS 7.1%
References
https://abraxaslabs.tech/research/pfsense-carp-vhidhttps://abraxaslabs.tech/research/pfsense-ce-leftovershttps://github.com/abraxas/pfsense-carp-vhidhttps://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L3236-L3238https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/pfsense-utils.inc#L794https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/pfSense/include/www/firewall_virtual_ip.inc#L200https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-carp-vhid