CVE-2026-11339 D-Link DWR-M920 formUSSDSetup sub_41CF20 command injection
Remote attackers can execute arbitrary commands on D-Link DWR-M920 routers via the formUSSDSetup interface, potentially compromising the device.
- 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-2026-11339?
CVE-2026-11339 is a medium-severity command injection vulnerability in D-Link DWR-M920, published on 5 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_41CF20 of the file /boafrm/formUSSDSetup. The manipulation of the argument ussdValue results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2026-11339?
It affects 1 product.
Products include Dlink Dwr-M920 Firmware.
How do I fix CVE-2026-11339?
No fix has been published for CVE-2026-11339 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-2026-11339 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11339 exists.
Other vulnerabilities in D-Link DWR-M920
- CVE-2025-15189 D-Link DWR-M920 formDefRoute sub_464794 buffer overflow
- CVE-2025-15190 D-Link DWR-M920 formFilter sub_42261C stack-based overflow
- CVE-2025-15193 D-Link DWR-M920 formParentControl sub_423848 buffer overflow
- CVE-2025-13553 D-Link DWR-M920 formPinManageSetup sub_41C7FC buffer overflow
- CVE-2026-10878 D-Link DWR-M920 formSmsManage sub_41C8E8 command injection
Sources
Also known as GHSA-p9xf-9grr-8jfx.