CVE

CVE-2026-45158

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, unsanitized user input is passed to the DHCP configuration of the configured interface, which is processed by a shell script, allowing remote code execution as root on the underlying operating system. This vulnerability is fixed in 26.1.8.

Severity

CRITICAL

CVSS

9.1

Published

May 13, 2026

Modified

Jun 17, 2026