CVE-2019-17621

9.8 CRITICAL CISA KEV - Actively Exploited
Published: December 30, 2019 Modified: November 07, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin
Source: cve@mitre.org
Vendor Advisory
https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf
Source: cve@mitre.org
Third Party Advisory US Government Resource
http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.dlink.com/en/security-bulletin
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17621
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

15 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
93.3%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2023-07-20

Weaknesses (CWE)

Affected Vendors

dlink