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…

PriorityP260critical9.1CVSS 3.1

AVNACLPRHUINSCCHIHAH

EPSS

0.53%

40.8th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
opnsense	core	< 26.1.8	26.1.8
opnsense	opnsense	< 26.1.8	26.1.8

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