D-Link DIR-110/412/600/615/645/815 RCE via service.cgi

Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.

D-Link DIR-815 hedwig.cgi sub_403794 stack-based overflow

A vulnerability was found in D-Link DIR-815 1.01. It has been declared as critical. This vulnerability affects the function sub_403794 of the file hedwig.cgi. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

D-LINK DIR-815 v1.01 was discovered to contain a buffer overflow via the component /web/captcha.cgi.