CVE-2026-82688 D-Link DNS-340L/DNS-345 Virtual Volume virtual_vol.cgi os command injection

Critical 9.4 Published Updated

Remote attackers can execute arbitrary OS commands on D-Link DNS-340L and DNS-345 NAS devices via the virtual volume handler.

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-2026-82688?

CVE-2026-82688 is a critical command injection vulnerability in D-Link DNS-340L, published on 31 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A security vulnerability has been detected in D-Link DNS-340L and DNS-345 1.01B04/1.03B06/1.04.B02/1.05b04. This impacts an unknown function of the file /cgi-bin/virtual_vol.cgi of the component Virtual Volume Handler. The manipulation of the argument f_sharename/f_target/f_name leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-82688?

How do I fix CVE-2026-82688?

No fix has been published for CVE-2026-82688 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-2026-82688 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82688 exists.

Sources

Also known as GHSA-pmq2-v8m8-m8hp.

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