Multiple cross-site request forgery (CSRF) vulnerabilities in the D-Link DSL-6740U gateway (Rev. H1) allow remote attackers to hijack the authentication of administrators for requests that change administrator credentials or enable remote management services to (1) Custom Services in Port Forwarding, (2) Port Triggering Entries, (3) URL Filters in Parental Control, (4) Print Server settings, (5) QoS Queue Setup, or (6) QoS Classification Entries.