CVE-2026-45158
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Vulnerability report for CVE-2026-45158, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-05-13

Last updated on: 2026-05-15

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-05-13
Last Modified
2026-05-15
Generated
2026-06-30
EPSS Evaluated
2026-06-28
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
opnsense opnsense to 26.1.8 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-88 The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

Attack-Flow Graph

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