CVE-2026-45158

—

CVSS 3.1

9.1 critical

EPSS

<1%p43

Published

May 13, 2026 (May 13, 2026)

Modified

Jun 17, 2026

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.

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

NVD CVE.org GitHub PoCs EPSS (0.5%)

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