CVE-2025-62215KEV · OVERDUECWE-362CWE-415

Windows Kernel Elevation of Privilege Vulnerability

High · published November 11, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.0. It is confirmed in active exploitation. It sits in the 91.4th percentile for exploit probability.

326
days past CISA
deadline
CVSS v3.1
7.0
EPSS
4%
Percentile
91.4
In the wild
Confirmed
What it is

⚡ A race condition in the Windows Kernel could let an authorized attacker elevate their privileges with a simple timing trick! 🤯 Think of it like two chefs trying to grab the last ingredient at the same time during a busy dinner service — if one chef is quicker, they get to create a dish that everyone else can’t access. This vulnerability works similarly, allowing one authorized user to outperform the system's safeguards and gain access to higher privileges. If exploited, this could allow an attacker to gain complete control over the system, access sensitive data, install new software, or even take down critical services. The consequences could be absolutely devastating, especially in environments that rely on the integrity and security of their systems.

Put simply

Think of it like two chefs trying to grab the last ingredient at the same time during a busy dinner service — if one chef is quicker, they get to create a dish that everyone else can’t access. This vulnerability works similarly, allowing one authorized user to outperform the system's safeguards and gain access to higher privileges. This vulnerability arises from improper synchronization during concurrent executions in the Windows Kernel, allowing a race condition that leads to elevated privileges for authorized users.

What to do

If exploited, this could allow an attacker to gain complete control over the system, access sensitive data, install new software, or even take down critical services. The consequences could be absolutely devastating, especially in environments that rely on the integrity and security of their systems. To safeguard against this vulnerability, ensure that your systems are updated to the latest patches provided by Microsoft. Regularly audit your user permissions and limit access to critical systems. Implement monitoring to detect unusual activities that might indicate an exploitation attempt. You've got this! With the right steps, we can keep our systems safe and sound! 🛡️

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:F/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.04464 · 91.4th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-415 · Double Free
Published
2025-11-11T17:59Z
KEV added
2025-11-12 · due 2025-12-03
EPSS history
Timeline
  • 12 NOV 00:00Z
    Added to CISA KEV — remediate by Dec 3
    kev
  • 11 NOV 17:59Z
    Windows Kernel Elevation of Privilege Vulnerability
    cvelistv5