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

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.

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.

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