CVE-2026-82688: d-link dns-340l Command Injection

Vulnerability summary

CVE-2026-82688 is a critical (CVSS 9.4) Command Injection vulnerability in d-link dns-340l. EPSS estimates a 3.60% chance of exploitation in the next 30 days, higher than 89.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 31-08-2026
   PublishedVulnerability first disclosed.
2. 01-09-2026
   Last modifiedVulnerability information updated.

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.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.