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.
{
"cwe_ids": [
"CWE-88"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45158.json",
"cna_assigner": "GitHub_M"
}{
"cpe": "cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "26.1.8"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}