CVE-2026-45158

CriticalCVSS 9.1/10Last 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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-88

Affected software

No affected versions have been published.

Timeline

Published: May 13, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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