Vulnerability Intelligence Report
D-Link Multiple Routers Remote Code Execution Vulnerability
CVE-2021-45382
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 KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:97.84%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-78 ↗CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| dlink | dir-820l_firmware | all |
| dlink | dir-820l | all |
| dlink | dir-820lw_firmware | all |
| dlink | dir-820lw | all |
| dlink | dir-826l_firmware | all |
| dlink | dir-826l | all |
| dlink | dir-830l_firmware | all |
| dlink | dir-830l | all |
| dlink | dir-836l_firmware | all |
| dlink | dir-836l | all |
| dlink | dir-810l_firmware | all |
| dlink | dir-810l | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
97.836%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-12-20T00:00:00 |
| Published | 2022-02-17T20:07:46 |
| Last Updated | 2025-10-21T23:15:45 |
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