Unrestricted File Upload Vulnerability in D-Link DNS-320 Product
CVE-2026-16327

6.9MEDIUM

Key Information:

Vendor

D-link
Status
Dns-320
Vendor
CVE Published:
20 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16327?

A vulnerability exists in the D-Link DNS-320 (version 1.0.2) related to the file /web/web_file/upload.php, which allows for unrestricted file uploads. By manipulating the argument 'File', an attacker can upload potentially harmful files. This issue can be exploited remotely, posing a substantial risk to the system, especially since it has been publicly disclosed and may be actively utilized in the wild.

Affected Version(s)

DNS-320 1.0.2

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-2026-16327 - Proof of Concept

References

https://vuldb.com/vuln/380693
vdb-entrytechnical-description
https://vuldb.com/vuln/380693/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16327
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

bigbrother_man (VulDB User)
.