OS Command Injection Vulnerability in D-Link DIR-816L Routers
CVE-2025-9727

5.3MEDIUM

Key Information:

Vendor

D-link
Status
Dir-816l
Vendor
CVE Published:
31 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9727?

A vulnerability has been identified in the D-Link DIR-816L routers that could allow an attacker to execute arbitrary operating system commands remotely. This flaw is found in the function soapcgi_main within the /soap.cgi file, where improper handling of the 'service' argument can be exploited for command injection. The exploitation potential poses significant risks, especially for devices that are no longer supported by D-Link. The exploit has been publicly shared, increasing the urgency for users with affected models to take immediate action to secure their devices.

Affected Version(s)

DIR-816L 206b01

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-2025-9727 - Proof of Concept

References

https://vuldb.com/?id.322016
vdb-entrytechnical-description
https://vuldb.com/?ctiid.322016
signaturepermissions-required
https://vuldb.com/?submit.639698
third-party-advisory

CVSS V4

Score:
5.3
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

Lexpl0it (VulDB User)
.
CVE-2025-9727 : OS Command Injection Vulnerability in D-Link DIR-816L Routers