Overview
A remote code execution vulnerability exists in all series H/W revisions routers via the DDNS function in ncc2 binary file.
https://nvd.nist.gov/vuln/detail/CVE-2021-45382
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2021-45382 |
| Vendor / Product | D-Link — Multiple Routers |
| NVD Published | 2022-02-17 |
| NVD Last Modified | 2025-11-10 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-78 |
| CISA KEV Added | 2022-04-04 |
| CISA KEV Deadline | 2022-04-25 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2022-04-25.
The impacted product is end-of-life and should be disconnected if still in use.
Timeline
| Date | Event |
|---|---|
| 2022-04-04 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-04-25 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2021-45382 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |