ACTIVELY EXPLOITED
CVE-2019-17621: D-Link DIR-859 Router Command Execution Vulnerability
| Vendor | D-Link |
|---|---|
| Product | DIR-859 Router |
| Actively exploited | Yes |
| Added to CISA KEV | 29 Jun 2023 |
| CISA federal deadline | 20 Jul 2023 |
| Weakness (CWE) | CWE-78 |
Required action (CISA's text)
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Description (NVD)
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.
SOURCES
Other D-Link flaws
- CVE-2025-29635: D-Link DIR-823X Command Injection Vulnerability
- CVE-2022-37055: D-Link Routers Buffer Overflow Vulnerability
- CVE-2022-40799: D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
- CVE-2020-25079: D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
- CVE-2020-25078: D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.