CVE-2026-44193: CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') in opnsense core
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, the XMLRPC method opnsense.restore_config_section fails to sanitize user supplied input leading to Remote Code Execution. This vulnerability is fixed in 26.1.7.
AI Analysis
Technical Summary
OPNsense core versions before 26.1.7 contain a command injection vulnerability (CWE-88) in the XMLRPC method opnsense.restore_config_section due to failure to sanitize user-supplied input properly. This allows an attacker with high privileges to execute arbitrary code remotely. The vulnerability is addressed in version 26.1.7.
Potential Impact
Successful exploitation leads to remote code execution with high impact on confidentiality, integrity, and availability of the affected system. Given the CVSS vector (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H), an attacker with high privileges can remotely execute arbitrary commands without user interaction, potentially compromising the entire firewall/router platform.
Mitigation Recommendations
Upgrade OPNsense core to version 26.1.7 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the fix is included in 26.1.7. No other mitigation is indicated.
CVE-2026-44193: CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') in opnsense core
Description
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, the XMLRPC method opnsense.restore_config_section fails to sanitize user supplied input leading to Remote Code Execution. This vulnerability is fixed in 26.1.7.
CVSS v3.1
Score 9.1critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OPNsense core versions before 26.1.7 contain a command injection vulnerability (CWE-88) in the XMLRPC method opnsense.restore_config_section due to failure to sanitize user-supplied input properly. This allows an attacker with high privileges to execute arbitrary code remotely. The vulnerability is addressed in version 26.1.7.
Potential Impact
Successful exploitation leads to remote code execution with high impact on confidentiality, integrity, and availability of the affected system. Given the CVSS vector (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H), an attacker with high privileges can remotely execute arbitrary commands without user interaction, potentially compromising the entire firewall/router platform.
Mitigation Recommendations
Upgrade OPNsense core to version 26.1.7 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the fix is included in 26.1.7. No other mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T15:13:47.570Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a052a70cbff5d86103e0d75
Added to database: 05/14/2026, 01:50:40 UTC
Last enriched: 05/21/2026, 11:59:36 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 144
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