CVE-2026-82690 D-Link DNS-327L/DNS-340L ve_mgr.cgi os command injection

Critical 9.4 Published Updated

Remote attackers can execute arbitrary OS commands via the f_dev argument in ve_mgr.cgi on D-Link DNS-327L and DNS-340L devices.

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-2026-82690?

CVE-2026-82690 is a critical command injection vulnerability in D-Link DNS-327L, published on 31 Aug 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 DNS-327L and DNS-340L up to 20260717. Affected by this vulnerability is an unknown functionality of the file /cgi-bin/ve_mgr.cgi. This manipulation of the argument f_dev causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-82690?

How do I fix CVE-2026-82690?

No fix has been published for CVE-2026-82690 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-2026-82690 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82690 exists.

Sources

Also known as GHSA-qg4g-6r7x-83jv.

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