OS Command Injection Vulnerability in D-Link DWR-M921 Router
CVE-2026-90706

5.1MEDIUM

Key Information:

Vendor

D-link
Status
Dwr-m921
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90706?

A vulnerability has been discovered in the D-Link DWR-M921 router, specifically in the function formWsc found in the file /boafrm/formWsc. This vulnerability allows for OS command injection through the manipulation of the targetAPSsid parameter. Attackers can exploit this issue remotely to execute arbitrary commands on the affected device. The exploit is publicly available, raising the risk of potential attacks.

Affected Version(s)

DWR-M921 1.1.52

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-2026-90706 - Proof of Concept

References

https://vuldb.com/vuln/403248
vdb-entrytechnical-description
https://vuldb.com/vuln/403248/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90706
third-party-advisory

CVSS V4

Score:
5.1
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

H3rmesk1t (VulDB User)
.