Critical severity9.1NVD Advisory· Published May 13, 2026· Updated May 15, 2026

CVE-2026-45158

Description

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/opnsense/core/security/advisories/GHSA-5rx3-w735-74wmnvdVendor Advisory

News mentions

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cvss	0.591
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000