{"id":"CVE-2026-119409","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-119409","generatedAt":"2026-11-04T11:42:52.873Z","title":"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.","description":"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 metacharacters through POST /api/core/firmware/set that opnsense-update evaluates with eval, and can also disable package signature verification through sed injection.","published":"2026-10-30T12:16:38.000Z","lastModified":"2026-10-30T19:23:25.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-78"],"affected":[],"epss":{"score":0.02477,"percentile":0.84582,"date":"2026-11-03","history":[{"date":"2026-10-31","score":0.02477,"percentile":0.84563}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-30T12:16:38.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-10-30T12:16:37.510Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/core","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/update/blob/a2b8a10ba85f13b2cd002abb4c8692dde99f0261/src/update/opnsense-update.sh.in#L165","source":"disclosure@vulncheck.com"},{"url":"https://github.com/opnsense/update/commit/9bfd3b7020499b6032ee64804193a9f3ce8178fa","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/opnsense-before-26.7.8-root-command-injection-via-firmware-mirror-setting","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-119409","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}