Vulnerability · Published May 13, 2026 · Assigned by GitHub_M

CVE-2026-44193OPNsense: RCE via XMLRPC endpoint using `opnsense.restore_config_section` method

Critical 9.1

In plain English

A critical-severity argument injection in core from opnsense. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.7%top 47.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
opnsense	core	< 26.1.7

Weakness: CWE-88 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

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