CVE-2026-11339 - Vulnerability Details

- D-Link DWR-M920 formUSSDSetup sub_41CF20 command injection

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.

Published: 2026-06-05

Score: 5.3 Medium

EPSS: 3.1% Low

KEV: No

Impact:

Action:

Analysis

Impact

The vulnerability is a command injection flaw in the D-Link DWR-M920 firmware, located in function sub_41CF20 of file /boafrm/formUSSDSetup. The ussdValue parameter is accepted without proper sanitization, allowing an attacker to inject arbitrary shell commands. This flaw is classified as CWE-74 and CWE-77 and enables the execution of system commands remotely, potentially compromising the confidentiality, integrity, and availability of the device.

Affected Systems

All D-Link DWR-M920 devices running firmware version 1.1.50 or older are affected, as the vulnerability exists up to that release. No other product or version information is provided.

Risk and Exploitability

The CVSS score of 5.3 indicates moderate severity, and the EPSS score of 3% suggests a low probability that the vulnerability will be exploited. The vulnerability is not listed in CISA KEV, but the exploit is publicly available and can be launched over the network without any local access or privileged credentials. A publicly exposed device could therefore be targeted by attackers seeking to gain control of the unit or disrupt network services.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

D-Link

DWR-M920

affected

Version	Status	Constraints
`1.1.0`	affected	—
`1.1.1`	affected	—
`1.1.2`	affected	—
`1.1.3`	affected	—
`1.1.4`	affected	—
`1.1.5`	affected	—
`1.1.6`	affected	—
`1.1.7`	affected	—
`1.1.8`	affected	—
`1.1.9`	affected	—
`1.1.10`	affected	—
`1.1.11`	affected	—
`1.1.12`	affected	—
`1.1.13`	affected	—
`1.1.14`	affected	—
`1.1.15`	affected	—
`1.1.16`	affected	—
`1.1.17`	affected	—
`1.1.18`	affected	—
`1.1.19`	affected	—
`1.1.20`	affected	—
`1.1.21`	affected	—
`1.1.22`	affected	—
`1.1.23`	affected	—
`1.1.24`	affected	—
`1.1.25`	affected	—
`1.1.26`	affected	—
`1.1.27`	affected	—
`1.1.28`	affected	—
`1.1.29`	affected	—
`1.1.30`	affected	—
`1.1.31`	affected	—
`1.1.32`	affected	—
`1.1.33`	affected	—
`1.1.34`	affected	—
`1.1.35`	affected	—
`1.1.36`	affected	—
`1.1.37`	affected	—
`1.1.38`	affected	—
`1.1.39`	affected	—
`1.1.40`	affected	—
`1.1.41`	affected	—
`1.1.42`	affected	—
`1.1.43`	affected	—
`1.1.44`	affected	—
`1.1.45`	affected	—
`1.1.46`	affected	—
`1.1.47`	affected	—
`1.1.48`	affected	—
`1.1.49`	affected	—
`1.1.50`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:dlink:dwr-m920_firmware:1.1.50:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dwr-m920:-:*:*:*:*:*:*:*

No data.

Vendor Product Confidence Versions

D-link

Dwr-m920

100%

Version	Status	Scheme	Platform
`1.1.0`	affected	semver	—
`1.1.1`	affected	semver	—
`1.1.2`	affected	semver	—
`1.1.3`	affected	semver	—
`1.1.4`	affected	semver	—
`1.1.5`	affected	semver	—
`1.1.6`	affected	semver	—
`1.1.7`	affected	semver	—
`1.1.8`	affected	semver	—
`1.1.9`	affected	semver	—
`1.1.10`	affected	semver	—
`1.1.11`	affected	semver	—
`1.1.12`	affected	semver	—
`1.1.13`	affected	semver	—
`1.1.14`	affected	semver	—
`1.1.15`	affected	semver	—
`1.1.16`	affected	semver	—
`1.1.17`	affected	semver	—
`1.1.18`	affected	semver	—
`1.1.19`	affected	semver	—
`1.1.20`	affected	semver	—
`1.1.21`	affected	semver	—
`1.1.22`	affected	semver	—
`1.1.23`	affected	semver	—
`1.1.24`	affected	semver	—
`1.1.25`	affected	semver	—
`1.1.26`	affected	semver	—
`1.1.27`	affected	semver	—
`1.1.28`	affected	semver	—
`1.1.29`	affected	semver	—
`1.1.30`	affected	semver	—
`1.1.31`	affected	semver	—
`1.1.32`	affected	semver	—
`1.1.33`	affected	semver	—
`1.1.34`	affected	semver	—
`1.1.35`	affected	semver	—
`1.1.36`	affected	semver	—
`1.1.37`	affected	semver	—
`1.1.38`	affected	semver	—
`1.1.39`	affected	semver	—
`1.1.40`	affected	semver	—
`1.1.41`	affected	semver	—
`1.1.42`	affected	semver	—
`1.1.43`	affected	semver	—
`1.1.44`	affected	semver	—
`1.1.45`	affected	semver	—
`1.1.46`	affected	semver	—
`1.1.47`	affected	semver	—
`1.1.48`	affected	semver	—
`1.1.49`	affected	semver	—
`1.1.50`	affected	semver	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the latest firmware update provided by D-Link that resolves the command injection vulnerability.
Disable or restrict access to the /boafrm/formUSSDSetup interface if the device does not require USSD operations.
Restrict network exposure of the D-Link DWR-M920 by placing it behind a firewall or using VLAN segmentation to limit access from untrusted networks.
Monitor device logs for suspicious command execution attempts and enforce strict access controls.

Generated by OpenCVE AI on June 18, 2026 at 12:55 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.03133.

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/7u7777/Dlink/blob/DWR-M920/formUSSDSetup.md
https://vuldb.com/cve/CVE-2026-11339
https://vuldb.com/submit/832579
https://vuldb.com/vuln/368881
https://vuldb.com/vuln/368881/cti
https://www.dlink.com/

History

Tue, 09 Jun 2026 16:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Dlink Dlink dwr-m920 Dlink dwr-m920 Firmware
CPEs		cpe:2.3:h:dlink:dwr-m920:-:::::::* cpe:2.3:o:dlink:dwr-m920_firmware:1.1.50:::::::*
Vendors & Products		Dlink Dlink dwr-m920 Dlink dwr-m920 Firmware

Tue, 09 Jun 2026 15:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 05 Jun 2026 16:45:00 +0000

Type	Values Removed	Values Added
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.
Title		D-Link DWR-M920 formUSSDSetup sub_41CF20 command injection
First Time appeared		D-link D-link dwr-m920
Weaknesses		CWE-74 CWE-77
CPEs		cpe:2.3:h:d-link:dwr-m920::::::::
Vendors & Products		D-link D-link dwr-m920
References		https://github.com/7u7777/Dlink/blob/DWR-M920/formUSSDSetup.md https://vuldb.com/cve/CVE-2026-11339 https://vuldb.com/submit/832579 https://vuldb.com/vuln/368881 https://vuldb.com/vuln/368881/cti https://www.dlink.com/
Metrics		cvssV2_0 `{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}`

Subscriptions

D-link Dwr-m920

Dlink Dwr-m920 Dwr-m920 Firmware

MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-06-05T16:30:11.653Z

Updated: 2026-06-09T14:37:14.423Z

Reserved: 2026-06-05T08:18:10.205Z

Link: CVE-2026-11339

Vulnrichment

Updated: 2026-06-09T14:10:40.999Z

NVD

Status : Analyzed

Published: 2026-06-05T17:16:46.193

Modified: 2026-06-09T16:17:35.963

Link: CVE-2026-11339

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-18T13:00:16Z

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

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