D Link · Dsl-3782 · CVE-2026-90880
**Name of the Vulnerable Software and Affected Versions**
D-Link DSL-3782 version 2016-07-28
**Description**
A command injection flaw exists in the Diagnostics component of the firmware. The issue occurs because the system does not properly sanitize data on the control level when processing the `Addr` parameter. A remote attacker can exploit this by manipulating the `Addr` parameter within the `/cgi-bin/New GUI/Set/Diagnostics.asp` endpoint, which affects the `system()` function. This can lead to a compromise of confidentiality, integrity, and availability of the protected information.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
As a temporary workaround, restrict access to the `/cgi-bin/New GUI/Set/Diagnostics.asp` endpoint to minimize the risk of exploitation.