CVE-2026-119409: OPNsense before 26.7.8 Root Command Injection via Firmware Mirror Setting
opnsense · core
Fixed in 26.7.8 · Affected: opnsense core before 26.7.8 · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 84% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- opnsense · corebefore 26.7.8
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- opnsense
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-119409 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.