Unrestricted File Upload Vulnerability in D-Link DNS-320 Device
CVE-2026-16332

6.9MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16332?

A vulnerability found in the D-Link DNS-320 version 1.0.2 allows remote attackers to exploit the multi_uploadify.php functionality. By manipulating the 'Filedata[]' parameter, unauthorized users can perform unrestricted file uploads to the device. This can lead to potential security breaches, as malicious files may be uploaded without appropriate validation or restrictions. As the exploit is publicly known, affected users are urged to implement immediate security measures.

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-2026-16332 - Proof of Concept

References

https://vuldb.com/vuln/380698
vdb-entrytechnical-description
https://vuldb.com/vuln/380698/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16332
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

red88-debug (VulDB User)
.