Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that these are also affected: DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825.

D-Link DIR-655 C devices before 3.02B05 BETA03 allow remote attackers to force a blank password via the apply_sec.cgi setup_wizard parameter.

D-Link DIR-655 C devices before 3.02B05 BETA03 allow CSRF for the entire management console.

D-Link DIR-655 C devices before 3.02B05 BETA03 allow remote attackers to execute arbitrary commands via shell metacharacters in the online_firmware_check.cgi check_fw_url parameter.

D-Link DIR-655 C devices before 3.02B05 BETA03 allow XSS, as demonstrated by the /www/ping_response.cgi ping_ipaddr parameter, the /www/ping6_response.cgi ping6_ipaddr parameter, and the /www/apply_sec.cgi html_response_return_page parameter.

Cross-site scripting (XSS) vulnerability in login.cgi in D-Link router DIR-655 (rev Bx) with firmware before 2.12b01 allows remote attackers to inject arbitrary web script or HTML via the html_response_page parameter.