CVE-2026-90705 D-Link DWR-M921 Boa Dispatch Table formsysCmd os command injection
Remote attackers can execute arbitrary OS commands on D-Link DWR-M921 routers via the formsysCmd function, requiring authentication.
- 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-2026-90705?
CVE-2026-90705 is a medium-severity command injection vulnerability in D-Link DWR-M921, published on 14 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability was determined in D-Link DWR-M921 1.1.52. This affects the function formsysCmd of the file /boafrm/formsysCmd of the component Boa Dispatch Table. Executing a manipulation of the argument sysCmd can lead to os command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.
Which versions are affected by CVE-2026-90705?
How do I fix CVE-2026-90705?
No fix has been published for CVE-2026-90705 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-2026-90705 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90705 exists.
Sources
Also known as GHSA-v5qm-x3v6-ppqj.