CVE-2026-111215 Netgate CVE debrief

Who should care

System administrators and security teams responsible for Netgate pfSense CE installations, especially those with authenticated users who have limited Wireless Edit or Interface Assignments privileges.

Why it matters

This vulnerability allows authenticated users to execute commands as root, potentially leading to system compromise. System administrators and security teams should review and limit Wireless Edit and Interface Assignments privileges, validate and sanitize user input, and implement additional security measures to detect and prevent OS command injection attacks.

• Authenticated users can execute commands as root, potentially leading to system compromise
• Limited privileges are required to exploit the vulnerability
• OS command injection attacks can be difficult to detect and prevent

Technical summary

The vulnerability is caused by the interface_wireless_clone() function interpolating unescaped input into an ifconfig shell command, allowing authenticated users to execute commands as root. This can be exploited by users with limited Wireless Edit or Interface Assignments privileges. Technical details are based on CVE Program records and supplemental sources describing the vulnerability. Defenders should review and limit privileges, validate and sanitize user input, and implement additional security measures to detect and prevent OS command injection attacks.

Defensive priority

Authenticated users with limited Wireless Edit or Interface Assignments privileges can submit malicious input to execute commands as root.

Recommended defensive actions

• Review and limit Wireless Edit and Interface Assignments privileges for authenticated users
• Validate and sanitize user input for wireless parent interface names
• Implement additional security measures to detect and prevent OS command injection attacks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The vulnerability is caused by the interface_wireless_clone() function interpolating unescaped input into an ifconfig shell command. Evidence is limited to public CVE Program records and supplemental sources describing technical details. Defenders should verify affected scope, validate input sanitization, and review system logs for suspicious activity.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.