CVE-2026-90880 D-Link DSL-3782 Diagnostics Diagnostics.asp system command injection
Remote attackers can execute arbitrary system commands on D-Link DSL-3782 routers via the Diagnostics interface, requiring authentication.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-90880?
CVE-2026-90880 is a medium-severity command injection vulnerability in D-Link DSL-3782, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in D-Link DSL-3782 2016-07-28. This issue affects the function system of the file /cgi-bin/New_GUI/Set/Diagnostics.asp of the component Diagnostics. Performing a manipulation of the argument Addr results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-90880?
How do I fix CVE-2026-90880?
No fix has been published for CVE-2026-90880 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-90880 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90880 exists.
Sources
Also known as GHSA-jh3q-jq8g-728p.