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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 4
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-19 20:43
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-19 20:43
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-15 21:05
- First seenCVSS 8.6NVD modified 2026-10-15 19:17
Affected (CPE criteria) 1
cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
References 5
- https://abraxaslabs.tech/research/pfsense-ce-leftovers Issue Tracking
- https://github.com/abraxas/pfsense-gw-ipv6-zone Third Party Advisory
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/gwlb.inc#L535 Product
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/util.inc#L1418 Product
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-os-command-injection-via-gateway-monitor-ip Third Party Advisory