CVE-2026-11339: Command Injection in D-Link DWR-M920
A vulnerability was detected in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_41CF20 of the file /boafrm/formUSSDSetup. The manipulation of the argument ussdValue results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.
AI Analysis
Technical Summary
The D-Link DWR-M920 router firmware up to version 1.1.50 contains a command injection vulnerability in the sub_41CF20 function of the /boafrm/formUSSDSetup endpoint. An attacker can remotely manipulate the ussdValue parameter to execute arbitrary commands on the device. The vulnerability is remotely exploitable without requiring user interaction and has a CVSS 4.0 base score of 5.3, indicating medium severity. No official patch or remediation level has been disclosed by D-Link, and the device is not a cloud service. Public exploit code exists, but no confirmed active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to execute arbitrary commands on the affected D-Link DWR-M920 device remotely. This could lead to unauthorized control over the device, potentially impacting device integrity and availability. However, the medium CVSS score and lack of known active exploitation suggest a moderate risk level at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level has been provided by D-Link, users should monitor the vendor's security advisories for updates. Until a patch is available, restricting remote access to the device's management interface and disabling USSD functionality if possible may reduce exposure.
CVE-2026-11339: Command Injection in D-Link DWR-M920
Description
A vulnerability was detected in D-Link DWR-M920 up to 1.1.50. The affected element is the function sub_41CF20 of the file /boafrm/formUSSDSetup. The manipulation of the argument ussdValue results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used.
CVSS v4.0
Score 5.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The D-Link DWR-M920 router firmware up to version 1.1.50 contains a command injection vulnerability in the sub_41CF20 function of the /boafrm/formUSSDSetup endpoint. An attacker can remotely manipulate the ussdValue parameter to execute arbitrary commands on the device. The vulnerability is remotely exploitable without requiring user interaction and has a CVSS 4.0 base score of 5.3, indicating medium severity. No official patch or remediation level has been disclosed by D-Link, and the device is not a cloud service. Public exploit code exists, but no confirmed active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to execute arbitrary commands on the affected D-Link DWR-M920 device remotely. This could lead to unauthorized control over the device, potentially impacting device integrity and availability. However, the medium CVSS score and lack of known active exploitation suggest a moderate risk level at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level has been provided by D-Link, users should monitor the vendor's security advisories for updates. Until a patch is available, restricting remote access to the device's management interface and disabling USSD functionality if possible may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-05T08:18:10.205Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a22fdf3e29bf47b5093731b
Added to database: 6/5/2026, 4:48:51 PM
Last enriched: 6/5/2026, 5:04:17 PM
Last updated: 6/6/2026, 6:50:39 AM
Views: 9
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