Vulnerability Intelligence Report
D-Link DIR-859 Router Command Execution Vulnerability
CVE-2019-17621
The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:89.62%
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-859_firmware | 1.06b01 |
| dlink | dir-859 | all |
| dlink | dir-822_firmware | all |
| dlink | dir-822 | all |
| dlink | dir-823_firmware | 1.00b06 |
| dlink | dir-823 | all |
| dlink | dir-865l_firmware | all |
| dlink | dir-865l | all |
| dlink | dir-868l_firmware | all |
| dlink | dir-868l | all |
| dlink | dir-869_firmware | 1.03b02 |
| dlink | dir-869 | all |
| dlink | dir-880l_firmware | all |
| dlink | dir-880l | all |
| dlink | dir-890l_firmware | 1.11b01 |
| dlink | dir-890l | all |
| dlink | dir-890r_firmware | 1.11b01 |
| dlink | dir-890r | all |
| dlink | dir-885l_firmware | all |
| dlink | dir-885l | all |
| dlink | dir-885r_firmware | all |
| dlink | dir-885r | all |
| dlink | dir-895l_firmware | all |
| dlink | dir-895l | all |
| dlink | dir-895r_firmware | all |
| dlink | dir-895r | all |
| dlink | dir-818lx_firmware | all |
| dlink | dir-818lx | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2019-10-16T00:00:00 |
| Published | 2019-12-30T16:09:17 |
| Last Updated | 2025-10-21T23:35:54 |
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