D-Link DNS-340L and DNS-345: OS Command Injection Vulnerability in Virtual Volume Handler
CVE-2026-82688

9.4CRITICAL

Key Information:

Vendor

D-link
Status
Dns-340l
Dns-345
Vendor
CVE Published:
31 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82688?

A security vulnerability exists in the D-Link DNS-340L and DNS-345 models, located in the Virtual Volume Handler component's virtual_vol.cgi file. This flaw allows for potential OS command injection via manipulation of the arguments f_sharename, f_target, or f_name, enabling remote attackers to execute commands on the affected device. The vulnerability has been publicly disclosed, increasing the risk of exploitation.

Affected Version(s)

DNS-340L 1.01B04

DNS-340L 1.03B06

DNS-340L 1.04.B02

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-82688 - Proof of Concept

References

https://vuldb.com/vuln/397176
vdb-entrytechnical-description
https://vuldb.com/vuln/397176/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-82688
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ST4R0001 (VulDB User)
.