June 29, 2023 · Applied Cybernetics Group
CVE-2019-17621 — D-Link DIR-859 Router
D-Link DIR-859 Router Command Execution Vulnerability
- Added to KEV
2023-06-29- Federal due date
2023-07-20- Vendor
- D-Link
- Product
- DIR-859 Router
- EPSS
- 99.8th percentile (score 0.930, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-17621
CISA short description
D-Link DIR-859 router contains a command execution vulnerability in the UPnP endpoint URL, /gena.cgi. Exploitation 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.
Required action
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.