ACTIVELY EXPLOITED

CVE-2020-25506: D-Link DNS-320 Device Command Injection Vulnerability

Facts
VendorD-Link
ProductDNS-320 Device
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline3 May 2022
Weakness (CWE)CWE-78

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.

SOURCES

Other D-Link flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.