CVE-2026-44193

OPNsense: RCE via XMLRPC endpoint using `opnsense.restore_config_section` method

State: Published
Severity: 9.1 Critical
Published: May 13, 2026
Updated: May 16, 2026
Reserved: May 5, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Affected Products

Product	Versions
coreopnsense	< 26.1.7Affected

References

https://github.com/opnsense/core/security/advisories/GHSA-xxp9-93cr-x54p

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