{"id":"CVE-2026-119409","title":"OPNsense before 26.7.8 Root Command Injection via Firmware Mirror Setting","summary":"OPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as root by storing a malicious firmware mirror URL. Attackers can submit shell meta…","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-78"],"vendor":"opnsense","product":"core","affected":["core < 26.7.8"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-30T15:34:50.876282Z"},"published":"2026-10-30","updated":"2026-10-30","sourceUpdated":"2026-10-30T15:55:57.541Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119409","references":[{"url":"https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p","label":"GitHub Security Advisory (GHSA-p683-f7x2-pm4p)"},{"url":"https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47"},{"url":"https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73"},{"url":"https://github.com/opnsense/update/commit/9bfd3b7020499b6032ee64804193a9f3ce8178fa"},{"url":"https://github.com/opnsense/update/blob/a2b8a10ba85f13b2cd002abb4c8692dde99f0261/src/update/opnsense-update.sh.in#L165"},{"url":"https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed"},{"url":"https://github.com/opnsense/core"},{"url":"https://www.vulncheck.com/advisories/opnsense-before-26.7.8-root-command-injection-via-firmware-mirror-setting","label":"VulnCheck Advisory: OPNsense before 26.7.8 Root Command Injection via Firmware Mirror Setting"}],"tags":["cve.org"],"epss":0.02477,"epssPercentile":0.84611,"ingestedAt":"2026-11-05T16:07:30.526Z","slug":"CVE-2026-119409","body":"## Overview\n\nOPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as root by storing a malicious firmware mirror URL. Attackers can submit shell metacharacters through POST /api/core/firmware/set that opnsense-update evaluates with eval, and can also disable package signature verification through sed injection.\n\n## Affected\n\n- `core < 26.7.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.5,"exploitation":0,"ransomware":0},"changes":[]}