CVE-2026-21234CWE-362

Windows Connected Devices Platform Service Elevation of Privilege Vulnerability

High · published February 10, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
18.7
In the wild
Unconfirmed
What it is

⚡ A race condition in the Windows Connected Devices Platform Service lets an attacker with authorization leap into a higher privilege level! 🚀 Think of it like a race between two delivery drivers: if they don’t coordinate properly and both attempt to access a shared parking spot at the same time, one driver could jump ahead without permission. This is how the vulnerability operates – it’s all about timing and control! An attacker could exploit this oversight to gain unauthorized access to sensitive system features, leading to potential alterations of system data or configurations. If they succeed, it's like letting an unwelcome guest into your secret room at a party – they could wreak havoc!

Put simply

Think of it like a race between two delivery drivers: if they don’t coordinate properly and both attempt to access a shared parking spot at the same time, one driver could jump ahead without permission. This is how the vulnerability operates – it’s all about timing and control! This vulnerability arises from improper synchronization in the Windows Connected Devices Platform Service, allowing concurrent execution of tasks that weren't designed to run together, enabling privilege elevation for authorized users.

What to do

An attacker could exploit this oversight to gain unauthorized access to sensitive system features, leading to potential alterations of system data or configurations. If they succeed, it's like letting an unwelcome guest into your secret room at a party – they could wreak havoc! It's crucial to apply the latest patches from Microsoft to mitigate this issue. Ensure your systems are regularly updated and audit user permissions to limit access where necessary. Keep an eye on updates for any further guidance! You've got this! With a little diligence, you can patch this hole and bolster your defenses. 🛡️

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00273 · 18.7th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2026-02-10T17:51Z
EPSS history
Timeline
  • 10 FEB 17:51Z
    Windows Connected Devices Platform Service Elevation of Privilege Vulnerability
    cvelistv5