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CVE-2021-45382

Known Exploited (CISA KEV)CRITICAL
9.8
CVSS Severity Score
EPSS Score79.2910%
EPSS Percentile88.17th
PublishedFeb 17, 2022
Last ModifiedNov 10, 2025

Vulnerability 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.

Affected Platforms (CPE)

💻
Dlink

Dir 820l Firmware

All versions
💻
Dlink

Dir 820lw Firmware

All versions
💻
Dlink

Dir 826l Firmware

All versions
💻
Dlink

Dir 830l Firmware

All versions
💻
Dlink

Dir 836l Firmware

All versions
💻
Dlink

Dir 810l Firmware

All versions

References & Advisories

🔗 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://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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45382

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