The vulnerability of the sub_4C0990 function in D-Link DI-7100G router’s microprogramming system allows a hacker to execute arbitrary commands.

The vulnerability of the sub4C0990 function in D-Link DI-7100G router microprogramming software is related to the execution of operations outside the buffer in memory when processing the openid parameter. Exploiting this vulnerability allows a remote attacker to execute arbitrary commands...

CVE-2025-11338 D-Link DI-7100G C1 jhttpd login.cgi sub_4C0990 buffer overflow

A flaw has been found in D-Link DI-7100G C1 up to 20250928. This vulnerability affects the function sub4C0990 of the file /webchat/login.cgi of the component jhttpd. Executing manipulation of the argument openid can lead to buffer overflow. It is possible to launch the attack remotely. The exploi...