This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects attempts to exploit various vulnerabilities in D-Link DSL-2750B Router.
D-Link DSL-2750B Router is prone to an arbitrary command-execution vulnerability because it fails to sufficiently sanitize user-supplied data. Specifically, this issue occurs in the 'cli' parameter of the 'login.cgi' script.
An attacker can execute arbitrary commands and retrieve sensitive information.