SECURELYN

CVE-2026-111214

Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with QinQ edit privilege to run commands by storing an unvalidated parent interface name. Attackers can save a crafted 'if' value, then edit the QinQ entry so it is interpolated into ifconfig shell commands, executing commands as root.

Scores

8.6
CVSS 8.6 out of 10, high severity.
10%
EPSS 10% chance of exploitation in the next 30 days.

The facts

Published
15 October 2026
Last changed
19 October 2026
NVD status
Analyzed
Severity
High, CVSS 8.6 out of 10 (version 4.0)
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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R…
Weakness
Affects
  • pfsense pfsense
Known exploited
Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
EPSS
10.0% chance of exploitation activity in the next 30 days (percentile 96).

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References