CVE-2026-90702 D-Link DWR-M921 formDiskFormat system os command injection
Remote attackers can execute arbitrary OS commands on D-Link DWR-M921 routers via the formDiskFormat interface, 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-2026-90702?
CVE-2026-90702 is a critical 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 flaw has been found in D-Link DWR-M921 1.1.52. Impacted is the function system of the file /boafrm/formDiskFormat. This manipulation of the argument partition causes os command injection. The attack may be initiated remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-90702?
How do I fix CVE-2026-90702?
No fix has been published for CVE-2026-90702 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-2026-90702 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90702 exists.
Sources
Also known as GHSA-8rmq-j59h-j83m.