# CVE-2021-45382: D-Link Multiple Routers Remote Code Execution Vulnerability

> CVE-2021-45382: D-Link Multiple Routers Remote Code Execution Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-45382
Last updated: 2025-10-21T23:15:45Z

- Published: 2022-02-17 20:07 UTC · Updated: 2025-10-21 23:15 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 97.8%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-04-04, federal due date 2022-04-25, ransomware use: Unknown

## 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.

## CISA required action

The impacted product is end-of-life and should be disconnected if still in use.

## Affected vendors and products

- D-Link: Multiple Routers

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-45382)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-45382)
- [https://github.com/doudoudedi/D-LINK\_Command\_Injection1/blob/main/D-LINK\_Command\_injection.md](https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md)
- [https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264](https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2021-45382 · Markdown: https://rewindex.com/cve/CVE-2021-45382.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-45382 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:11:44.268Z