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

Source: https://junglewise.ai/threats/cve-2019-17621-d-link-dir-859-router-command-execution-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-06-29. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2019-17621 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2023-06-29

The D-Link DIR-859 router contains an OS command injection vulnerability in the UPnP endpoint /gena.cgi. An unauthenticated remote attacker can execute arbitrary commands as root by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service.

Vendors: [D-Link](https://junglewise.ai/threats/vendors/d-link).

## Quick answers

**Is CVE-2019-17621 exploited in the wild?** Yes. CVE-2019-17621 is known to be exploited in the wild, first recorded on 29 June 2023. Treat it as urgent.

**How severe is CVE-2019-17621?** Critical severity, with a CVSS score of 9.8, published 29 June 2023.

**Which products and versions are affected?** D-Link DIR-859 1.05, 1.06B01 Beta01.

**Is there a fix for CVE-2019-17621?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2019-17621 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2019-17621?** Check whether you run D-Link DIR-859 or D-Link Dir-859 Router. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- D-Link DIR-859 1.05, 1.06B01 Beta01

## Timeline

- 2023-06-29: disclosed
- 2023-06-29: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2023-06-29: advisory: NVD publication date
- 2023-06-29: exploited: Confirmed exploited in the wild per CISA KEV entry.

## Related threats

- [D-Link DIR-859 path traversal in hedwig.cgi](https://junglewise.ai/threats/cve-2024-0769-d-link-dir-859-path-traversal-in-hedwig-cgi)