CVE-2021-45382
D-Link Multiple Routers Remote Code Execution Vulnerability - [Actively Exploited]
Description
A Remote Command Execution (RCE) vulnerability exists in all series H/W revisions D-link DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L routers via the DDNS function in ncc2 binary file. Note: DIR-810L, DIR-820L, DIR-830L, DIR-826L, DIR-836L, all hardware revisions, have reached their End of Life ("EOL") /End of Service Life ("EOS") Life-Cycle and as such this issue will not be patched.
INFO
Published Date :
Feb. 17, 2022, 9:15 p.m.
Last Modified :
April 3, 2025, 7:48 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
A remote code execution vulnerability exists in all series H/W revisions routers via the DDNS function in ncc2 binary file.
The impacted product is end-of-life and should be disconnected if still in use.
https://nvd.nist.gov/vuln/detail/CVE-2021-45382
Affected Products
The following products are affected by CVE-2021-45382
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade to a supported device.
Public PoC/Exploit Available at Github
CVE-2021-45382 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-45382.
| URL | Resource |
|---|---|
| https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md | Exploit Third Party Advisory |
| https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264 | Vendor Advisory |
| https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md | Exploit Third Party Advisory |
| https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-45382 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-45382
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This is a repository for collecting and collating vulnerability disclosures, tips, and tools
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-45382 vulnerability anywhere in the article.
-
Cybersecurity News
CVE-2024-11120 (CVSS 9.8): OS Command Injection Flaw in GeoVision Devices Actively Exploited, No Patch
The Taiwan Computer Emergency Response Team / Coordination Center (TWCERT/CC) has issued a warning about an actively exploited critical vulnerability in certain end-of-life (EOL) GeoVision devices. Tr ... Read more
The following table lists the changes that have been made to the
CVE-2021-45382 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Apr. 03, 2025
Action Type Old Value New Value -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 29, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md Added Reference https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 25, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md No Types Assigned https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md Exploit, Third Party Advisory Changed Reference Type https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264 No Types Assigned https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264 Vendor Advisory Added CWE NIST CWE-77 Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-820l_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-820l:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-820lw_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-820lw:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-826l_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-826l:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-830l_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-830l:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-836l_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-836l:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dir-810l_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dir-810l:-:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 10
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
94.23 }} 0.01%
score
0.99919
percentile