CVE-2026-8344 D-Link DIR-816 formDMZ.cgi sub_445E7C command injection
Remote attackers can execute arbitrary commands on D-Link DIR-816 routers via a vulnerability in the DMZ configuration interface.
- 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-2026-8344?
CVE-2026-8344 is a medium-severity command injection vulnerability in Dlink Dir-816 Firmware, published on 11 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in D-Link DIR-816 1.10CNB05_R1B011D88210. Affected by this vulnerability is the function sub_445E7C of the file /goform/formDMZ.cgi. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-8344?
It affects 1 product.
Products include Dlink Dir-816 Firmware.
How do I fix CVE-2026-8344?
No fix has been published for CVE-2026-8344 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-2026-8344 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8344 exists.
Other vulnerabilities in Dlink Dir-816 Firmware
Sources
Also known as GHSA-vwxw-q9j2-rh5v.