CVE-2026-2085 D-Link DWR-M921 USSD Configuration Endpoint formUSSDSetup sub_419F20 command injection
Remote attackers can execute arbitrary commands on D-Link DWR-M921 routers via the USSD configuration endpoint.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2085?
CVE-2026-2085 is a high-severity command injection vulnerability in D-Link DWR-M921, published on 7 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A security vulnerability has been detected in D-Link DWR-M921 1.1.50. Affected is the function sub_419F20 of the file /boafrm/formUSSDSetup of the component USSD Configuration Endpoint. The manipulation of the argument ussdValue leads to command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.
Which versions are affected by CVE-2026-2085?
It affects 1 product.
Products include Dlink Dwr-M921 Firmware.
How do I fix CVE-2026-2085?
No fix has been published for CVE-2026-2085 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-2026-2085 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2085 exists.
Other vulnerabilities in D-Link DWR-M921
Sources
Also known as GHSA-377q-fc84-7fvf.