CVE-2020-25506KEV · OVERDUE

D-Link DNS-320 Device Command Injection Vulnerability

Critical · published February 2, 2021

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

1636
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A sneaky command injection in D-Link’s DNS-320 can let attackers run arbitrary code, all thanks to a vulnerable component. 🔥 Think of it like a delivery driver who can peek inside your house just by knowing the front door code — once they’re in, they have full access to everything. 🏠 This vulnerability is absolutely devastating! An attacker could execute any code on the device, leading to unauthorized access and control over your files. Imagine the chaos if they decide to delete or alter your important data without you knowing!

Put simply

Think of it like a delivery driver who can peek inside your house just by knowing the front door code — once they’re in, they have full access to everything. 🏠 CVE-2020-25506 allows for command injection in the system_mgr.cgi component of D-Link’s DNS-320. This means that a remote attacker could send crafted commands that the system executes, ultimately leading to full remote code execution.

What to do

This vulnerability is absolutely devastating! An attacker could execute any code on the device, leading to unauthorized access and control over your files. Imagine the chaos if they decide to delete or alter your important data without you knowing! Immediately update your D-Link DNS-320 to the patched version or consult the manufacturer for firmware updates. Consider changing any default credentials and monitoring your system for any unusual activity. 🛡️ You've got this! Follow these steps and you'll secure your device in no time. 💪

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99968 · 100.0th percentile
Published
2021-02-02T13:00Z
KEV added
2021-11-03 · due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by May 3
    kev
  • 02 FEB 13:00Z
    D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution
    cvelistv5