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. 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.
Published:Oct 15, 2026
Last Modified:Oct 26, 2026
EPS:Oct 15, 2026
EPSS Score:0.06548
CVSS Score:7.2
Affected Products
Vendor
Product
Action
Vendor
Netgate
Product
Pfsense
Netgate
Pfsense
Vendor
Netgate
Product
Pfsense Ce
Netgate
Pfsense Ce
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
