CVE-2019-17621: D-Link DIR-859 Router Command Execution Vulnerability
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.
| Vendor | D-Link |
|---|---|
| Product | DIR-859 Router |
| Date added to KEV | 2023-06-29 |
| Due date (BOD 22-01) | 2023-07-20 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-78 |
| Required action | Apply updates per vendor instructions or discontinue use of the product if updates are unavailable. |
What to do
- Identify every instance of D-Link DIR-859 Router in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
- Federal civilian agencies must act by 2023-07-20 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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