RCE in Netgate Pfsense Ce
CVE-2026-111216
Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with gateway edit privileges to execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Attackers can set a gateway Monitor IP whose unvalidated zone carries a payload, which start_dpinger() passes unescaped to the dpinger shell command when monitoring is applied.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/abraxas/pfsense-gw-ipv6-zone (technical-description, exploit)
- abraxaslabs.tech/research/pfsense-ce-leftovers (technical-description)
- github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/et… (technical-description)
- github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/et… (technical-description)
- www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-inject… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111216?
- CVE-2026-111216 is a high-severity vulnerability in Netgate Pfsense Ce, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-10-15.
- How severe is CVE-2026-111216?
- High severity. CVSS v3 base score is 7.2 out of 10.