High [CVE-2026-111226] pfSense CE 2.4.5 through 2.9.0 contains an OS command injection vulnerability that allows authenticated WebGUI users with Advanced Admin Access privilege to execute commands as root via Login Protection settings
This high-severity Netgate pfSense advisory covers CVE-2026-111226 affecting pfSense CE.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
pfSense CE 2.4.5 through 2.9.0 contains an OS command injection vulnerability that allows authenticated WebGUI users with Advanced Admin Access privilege to execute commands as root via Login Protection settings.
Attackers can submit sshguard threshold, block time, or detection time values containing newlines or $(...) that are written unvalidated to sshguard.conf and sourced as root on restart.
- through 2.9.0
NVD record · high-confidence parse· fetched 6 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
NVD record · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- Attackers can submit sshguard threshold, block time, or detection time values containing newlines or $(...) that are written unvalidated to sshguard.conf and sourced as root on restart.
NVD record · high-confidence parse· fetched 6 days ago·verify at source
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