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.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Thu, 15 Oct 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Netgate pfSense CE 2.4.5 through 2.9.0 OS Command Injection via system_advanced_admin.php | |
| First Time appeared |
Netgate
Netgate pfsense |
|
| Weaknesses | CWE-78 | |
| CPEs | cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Netgate
Netgate pfsense |
|
| References |
|
|
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-15T18:46:25.792Z
Reserved: 2026-10-15T18:21:22.260Z
Link: CVE-2026-111226
No data.
Status : Received
Published: 2026-10-15T19:17:35.373
Modified: 2026-10-15T19:17:35.373
Link: CVE-2026-111226
No data.
OpenCVE Enrichment
No data.
Weaknesses