Command Injection Vulnerability in D-Link DWR-M921 Router
CVE-2026-2085

8.6HIGH

Key Information:

Vendor

D-link
Status
Dwr-m921
Vendor
CVE Published:
7 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2085?

A command injection vulnerability has been identified in the D-Link DWR-M921 router, specifically within the USSD Configuration Endpoint function sub_419F20. This vulnerability is caused by improper handling of the 'ussdValue' argument, allowing attackers to execute arbitrary commands remotely. Given that the exploit has been publicly disclosed, it poses a significant risk to users, enabling potential unauthorized actions on affected devices. Users are advised to implement immediate security measures.

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Affected Version(s)

DWR-M921 1.1.50

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-2026-2085 - Proof of Concept

References

https://vuldb.com/?id.344652
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344652
signaturepermissions-required
https://vuldb.com/?submit.746400
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
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

LX-66-LX (VulDB User)
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