Command Injection Vulnerability in D-Link DNS-343 ShareCenter Devices
CVE-2018-25120

9.3CRITICAL

Key Information:

Vendor

D-link
Status
Dns-343 Sharecenter
Vendor
CVE Published:
29 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25120?

The D-Link DNS-343 ShareCenter devices harbor a command injection weakness in the Mail Test feature, allowing attackers to exploit the web maintenance script. By sending specially crafted form data to the '/goform/Mail_Test' endpoint without proper input sanitization, an unauthenticated remote intruder can execute arbitrary shell commands with root privileges. This vulnerability underscores the importance of secure coding practices, especially in devices that are already end-of-life.

Affected Version(s)

DNS-343 ShareCenter 0 <= 1.05

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-2018-25120 - Proof of Concept

CVE-2018-25120 - Proof of Concept

CVE-2018-25120 - Proof of Concept

References

https://www.exploit-db.com/exploits/43845
exploit
https://qkl.seebug.org/vuldb/ssvid-97088
exploit
https://www.dlink.com/al/sq/products/dns-343-sharecenter-...
product

CVSS V4

Score:
9.3
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

James Bercegay of GulfTech Research and Development
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CVE-2018-25120 : Command Injection Vulnerability in D-Link DNS-343 ShareCenter Devices