CVE-2026-85223 D-Link DNS-340L CGI dropbox.cgi os command injection
Remote attackers can execute arbitrary OS commands on D-Link DNS-340L devices via the dropbox.cgi script.
- 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-2026-85223?
CVE-2026-85223 is a critical command injection vulnerability in D-Link DNS-340L, published on 3 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in D-Link DNS-340L 1.01B04. Affected by this issue is some unknown functionality of the file /cgi-bin/dropbox.cgi of the component CGI Handler. Performing a manipulation of the argument callback_url/sync_interval results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.
Which versions are affected by CVE-2026-85223?
How do I fix CVE-2026-85223?
No fix has been published for CVE-2026-85223 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-2026-85223 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85223 exists.
Sources
Also known as GHSA-hq96-v7ff-6hfp.