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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2025-0324
Privilege Escalation vulnerability in Windows Kernel

Original Issue Date:November 18, 2025

Severity Rating: HIGH

Software Affected

  • Windows 10 version 1809 from 10.0.17763.0 before 10.0.17763.8027
  • Windows 10 version 21H2 from 10.0.19044.0 before 10.0.19044.6575
  • Windows 10 version 22H2 from 10.0.19045.0 before 10.0.19045.6575
  • Windows 11 version 25H2 from 10.0.26200.0 before 10.0.26200.7171
  • Windows 11 version 22H3 from 10.0.22631.0 before 10.0.22631.6199
  • Windows 11 version 23H2 from 10.0.22631.0 before 10.0.22631.6199
  • Windows 11 version 24H2 from 10.0.26100.0 before 10.0.26100.7171
  • Windows server 2019 versions from 10.0.17763.0 before 10.0.17763.8027
  • Windows server 2019 (Server Core installation) versions from 10.0.17763.0 before 10.0.17763.8027
  • Windows server 2022 versions from 10.0.20348.0 before 10.0.20348.4405
  • Windows server 2025 versions from 10.0.26100.0 before 10.0.26100.7171
  • Windows server 2025 (Server Core installation) versions from 10.0.26100.0 before 10.0.26100.7171
  • Windows Server 2022, 23H2 (Server Core installation) versions from 10.0.25398.0 before 10.0.25398.1965

Note: Organizations should verify exact build numbers via the Microsoft advisory, as build-numbers and superseded updates may vary by channel (e.g., LTSC, ESU, Server Core).

Overview

A vulnerability has been reported in Microsoft windows kernel, which could allow an authorized attacker to elevate privileges locally on the targeted system.

Target Audience:
All end-user organizations and individuals using Microsoft windows operating systems.

Risk Assessment:
High risk of data manipulation and service disruption.

Impact Assessment:
Potential impact on confidentiality, integrity, and availability of the system.

Description

This vulnerability in Microsoft windows kernel exists due to concurrent execution using shared resources with improper synchronization (race condition). An attacker with local, low-privilege access can trigger a race condition in the kernel component by forcing multiple threads to access a shared resource concurrently without proper locking or synchronization.

Successful exploitation of this vulnerability could allow an authorized attacker to elevate privileges locally on the targeted system.

Solution

Apply appropriate updates as mentioned:
https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-62215

Vendor Information

Microsoft
https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-62215

References

Microsoft
https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-62215

CVE Name
CVE-2025-62215

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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