CVE-2021-42313

Microsoft Defender for IoT Remote Code Execution Vulnerability

Critical · published December 15, 2021

CVSS v3.1
10.0
EPSS
4%
Percentile
90.6
In the wild
Unconfirmed
What it is

🚨 Microsoft Defender for IoT has a vulnerability that lets remote code execution happen with just a click—think a burglar pick-pocketing a keycard right out of your wallet! 🔥 Imagine a hotel with a faulty lock on a VIP suite. A guest can waltz in, grab the valuables, and leave, all without ever raising an alarm. That's the situation with this vulnerability! An attacker could exploit this vulnerability and gain full control over devices managed by Microsoft Defender for IoT. This could lead to unauthorized access to sensitive data, manipulation of devices, and even cause widespread disruptions in critical infrastructures—absolutely devastating!

Put simply

Imagine a hotel with a faulty lock on a VIP suite. A guest can waltz in, grab the valuables, and leave, all without ever raising an alarm. That's the situation with this vulnerability! This remote code execution vulnerability exists due to improper handling of requests in Microsoft Defender for IoT, allowing attackers to run arbitrary code on affected systems without authentication.

What to do

An attacker could exploit this vulnerability and gain full control over devices managed by Microsoft Defender for IoT. This could lead to unauthorized access to sensitive data, manipulation of devices, and even cause widespread disruptions in critical infrastructures—absolutely devastating! To protect your systems, patch Microsoft Defender for IoT to the latest version immediately, ensure all security updates are applied, and audit your network to identify at-risk devices. Don't delay—time is of the essence with a vulnerability this critical! You've got this! Follow these steps, and you'll be locking down your devices tighter than Fort Knox! 🛡️

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.04075 · 90.6th percentile
Published
2021-12-15T14:14Z
EPSS history
Timeline
  • 15 DEC 14:14Z
    Microsoft Defender for IoT Remote Code Execution Vulnerability
    cvelistv5