What’s Vulnerable › Vulnerabilities

CVE-2026-111218: Netgate pfSense CE 2.7.0 through 2.9.0 OS Command Injection via Traffic Shaper Limiters

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-15 · updated 2026-10-20
• Weakness: CWE-78

Description

Netgate pfSense CE 2.7.0 through 2.9.0 contains an OS command injection vulnerability that allows authenticated users with Traffic Shaper Limiters privileges to execute root commands by tampering with the limiter number field. Attackers can submit a malicious hidden 'number' value when editing a limiter, then delete it so delete_queue() passes the unquoted value to dnctl via /bin/sh as root.

Affected products

• Netgate pfSense CE: from 2.7.0 through 2.9.0

References

• https://abraxaslabs.tech/research/pfsense-ce-leftovers
• https://abraxaslabs.tech/research/pfsense-limiter-number
• https://github.com/abraxas/pfsense-limiter-number
• https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/shaper.inc#L3820-L3821
• https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/shaper.inc#L3959
• https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.0-through-2.9.0-os-command-injection-via-traffic-shaper-limiters

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