{"id":"CVE-2026-111217","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111217","generatedAt":"2026-10-28T01:12:10.727Z","title":"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.","description":"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.","published":"2026-10-15T19:17:34.000Z","lastModified":"2026-10-21T01:17:20.000Z","status":"Analyzed","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"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/M"},"cwe":["CWE-78"],"affected":["pfsense/pfsense"],"epss":{"score":0.06959,"percentile":0.9408,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.07054,"percentile":0.94124}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (6.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-15T19:17:34.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-10-15T19:17:34.067Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://abraxaslabs.tech/research/pfsense-carp-vhid","tags":["Exploit","Issue Tracking","Mitigation"],"source":"disclosure@vulncheck.com"},{"url":"https://abraxaslabs.tech/research/pfsense-ce-leftovers","tags":["Issue Tracking"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/abraxas/pfsense-carp-vhid","tags":["Third Party Advisory"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L3236-L3238","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/pfsense-utils.inc#L794","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/pfSense/include/www/firewall_virtual_ip.inc#L200","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-carp-vhid","tags":["Third Party Advisory"],"source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111217","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}