CVE-2021-26810

D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability

published March 30, 2021

CVSS
—
EPSS
5%
Percentile
92.1
In the wild
Unconfirmed
What it is

⚠️ A crafty HTTP request is all it takes to inject commands on your D-Link router! This vulnerability in DIR-816 A2 v1.10 could let attackers run wild! 🔥 Think of this like a delivery service that ignores the return address on packages. If someone writes in a different address, they could send your router instructions it never asked for! An attacker could exploit this vulnerability to execute commands on the router, potentially taking control of the device entirely. This means they could modify settings, redirect traffic, or even spy on your network—definitely not the kind of neighbor you want!

Put simply

Think of this like a delivery service that ignores the return address on packages. If someone writes in a different address, they could send your router instructions it never asked for! The vulnerability in D-Link DIR-816 A2 v1.10 arises from improper handling of HTTP request parameters, specifically in the /goform/dir_setWanWifi function. It allows command injection via shell metacharacters in the statuscheckpppoeuser parameter.

What to do

An attacker could exploit this vulnerability to execute commands on the router, potentially taking control of the device entirely. This means they could modify settings, redirect traffic, or even spy on your network—definitely not the kind of neighbor you want! To secure your router, update to the latest firmware version provided by D-Link. Regularly check for updates and ensure your device settings are configured to block untrusted input. Don't forget to audit your network for any suspicious activity! You've got this! Secure your D-Link router today and keep your network safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04905 · 92.1th percentile
Published
2021-03-30T13:27Z
EPSS history
Timeline
  • 30 MAR 13:27Z
    D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability
    cvelistv5