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9.1

CVE-2026-44193: OPNsense Firewall Allows Remote Attackers to Run Malicious Code

CVE-2026-44193
Summary

A security issue in older versions of OPNsense's firewall and routing platform allows attackers to run malicious code on the system. This is a serious risk because it could be used to take control of the system or disrupt its operation. To fix this, update to version 26.1.7 or later.

Original title
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....
Original 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.
nvd CVSS3.1 9.1
Vulnerability type
CWE-88
Published: 13 May 2026 · Updated: 28 May 2026 · First seen: 13 May 2026