CVE-2026-111216: pfSense CE 0 through 2.9.0

Affected technology

pfSense CE · 0 through 2.9.0
Netgate

Description’s affected range: through 2.9.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · High privileges required · No user interaction required

What an attacker can do

Authenticated users with gateway edit privileges can execute commands as root by injecting shell metacharacters into an IPv6 link-local zone index. Vendor/CNA’s CVSS 4.0 assessment (base score 8.6/10) rates confidentiality, integrity and availability impact as high.