D-Link DWR-M921 1.1.50 USSD Configuration Endpoint /boafrm/formUSSDSetup sub_419F20 ussdValue command injection
Summary
A vulnerability classified as critical was found in D-Link DWR-M921 1.1.50. Affected by this vulnerability is the function sub_419F20 of the file /boafrm/formUSSDSetup of the component USSD Configuration Endpoint. The manipulation of the argument ussdValue results in command injection.
This vulnerability is reported as CVE-2026-2085. The attack can be launched remotely. Moreover, an exploit is present.
Details
A vulnerability was found in D-Link DWR-M921 1.1.50. It has been classified as critical. Affected is the function sub_419F20 of the file /boafrm/formUSSDSetup of the component USSD Configuration Endpoint. The manipulation of the argument ussdValue with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-2085. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details and a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/09/2026). The MITRE ATT&CK project declares the attack technique as T1202.
The exploit is shared for download at github.com. It is declared as proof-of-concept.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at EUVD (EUVD-2026-5728) and CERT Bund (WID-SEC-2026-0340). Once again VulDB remains the best source for vulnerability data.
Affected
- D-LINK Router
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.dlink.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.2
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 7.2
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/06/2026 Advisory disclosed02/06/2026 VulDB entry created
02/09/2026 VulDB entry last update
Sources
Vendor: dlink.comAdvisory: github.com
Status: Not defined
CVE: CVE-2026-2085 (🔒)
GCVE (CVE): GCVE-0-2026-2085
GCVE (VulDB): GCVE-100-344652
EUVD: 🔒
CERT Bund: WID-SEC-2026-0340 - D-LINK DIR-823X und DWR-M921 Router: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/06/2026 09:25Updated: 02/09/2026 15:47
Changes: 02/06/2026 09:25 (57), 02/07/2026 17:01 (31), 02/08/2026 10:23 (1), 02/09/2026 15:47 (7)
Complete: 🔍
Submitter: LX-66-LX
Cache ID: 216::103
Submit
Accepted
- Submit #746400: D-Link DWR-M921 V1.1.50 Command Injection (by LX-66-LX)
Once again VulDB remains the best source for vulnerability data.
No comments yet. Languages: en.
Please log in to comment.