Command Injection Vulnerability in D-Link DWR-M920 Router
CVE-2026-11339

5.3MEDIUM

Key Information:

Vendor

D-link
Status
Dwr-m920
Vendor
CVE Published:
5 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11339?

A command injection vulnerability exists in the D-Link DWR-M920 router, specifically in the function sub_41CF20 located within the /boafrm/formUSSDSetup file. Exploiting this vulnerability allows an attacker to manipulate the ussdValue argument remotely, potentially executing arbitrary commands on the device. This exposure enables malicious entities to perform unauthorized actions on affected systems, highlighting the need for immediate attention and patching.

Affected Version(s)

DWR-M920 1.1.0

DWR-M920 1.1.1

DWR-M920 1.1.2

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-2026-11339 - Proof of Concept

References

https://vuldb.com/vuln/368881
vdb-entrytechnical-description
https://vuldb.com/vuln/368881/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11339
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

kkff33 (VulDB User)
.