# CVE-2019-17621: D-Link DIR-859 Router Command Execution Vulnerability

> CVE-2019-17621: D-Link DIR-859 Router Command Execution Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-17621
Last updated: 2025-10-21T23:35:54Z

- Published: 2019-12-30 16:09 UTC · Updated: 2025-10-21 23:35 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: 90.6%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2023-06-29, federal due date 2023-07-20, ransomware use: Unknown

## 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.

## CISA required action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

## Affected vendors and products

- D-Link: DIR-859 Router

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-17621)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-17621)
- [http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html](http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html)
- [https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104](https://medium.com/%2540s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104)
- [https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9](https://medium.com/%2540s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9)
- [https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146](https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146)
- [https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147](https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147)
- [https://www.dlink.com/en/security-bulletin](https://www.dlink.com/en/security-bulletin)
- [https://www.ftc.gov/system/files/documents/cases/dlink\_proposed\_order\_and\_judgment\_7-2-19.pdf](https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf)

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_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/)_


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Canonical: https://rewindex.com/cve/CVE-2019-17621 · Markdown: https://rewindex.com/cve/CVE-2019-17621.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-17621 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:19.700Z