CVE-2026-111216
High
Description
Netgate pfSense CE through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with gateway edit privileges to execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Attackers can set a gateway Monitor IP whose unvalidated zone carries a payload, which start_dpinger() passes unescaped to the dpinger shell command when monitoring is applied.
SeverityHigh
CVSS7.2
Exploit probability—
ProductPfsense
PublishedOct 15, 2026
First seenOct 15, 2026
Weakness typeCWE-78OS command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pfsense pfsense | v ≤ 2.9.0 | — |
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