CVE-2026-111216CWE-78command-injection

CVE-2026-111216

High · published October 15, 2026

CVSS v3.1
7.2
EPSS
5%
Percentile
91.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · 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
EPSS
0.04626 · 91.7th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-10-15T23:17Z
Affected products (1)
ProductVersionsFixed in
pfsense/pfsense≤ 2.9.0—
References (5)
https://abraxaslabs.tech/research/pfsense-ce-leftovers · [email protected]https://github.com/abraxas/pfsense-gw-ipv6-zone · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/gwlb.inc#L535 · [email protected]https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/util.inc#L1418 · [email protected]https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-gateway-monitor-ip · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 7%
    epss
  • 15 OCT 18:46Z
    Netgate pfSense CE through 2.9.0 OS Command Injection via Gateway Monitor IP
    cvelistv5
  • 15 OCT 18:46Z
    Netgate pfSense CE through 2.9.0 OS Command Injection via Gateway Monitor IP
    cvelistv5