CVE-2026-119409High· 7.2▾ TwilightOPNsense 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.6 · likelihood 0.5 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
2.5%
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.
core < 26.7.8Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-119425Medium· 5.4OPNsense 26.1.6 through 26.7.7 Captive Portal Session Takeover via Forged ARP
CVE-2026-119560Medium· 5.9OPNsense core through 26.7.8 NTP Configuration Injection via GPS and PPS Fudge Fields
CVE-2026-119423Medium· 5.3OPNsense core before 26.7.8 Lockout IP Planting via WebGUI Login Username
CVE-2026-119424Medium· 6.8OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity
CVE-2026-57155Critical· 9.9OPNsense is a FreeBSD based firewall and routing platform
CVE-2026-123025Critical· 9.4An OS Command Injection vulnerability was discovered in the Google Cloud DNS validation module of the OPNsense os-acme-client plugin through 4.17