---
id: CVE-2025-64658
title: >-
  Concurrent execution using shared resource with improper synchronization
  ('race condition') in Windows Shell allows an authorized attacker to elevate
  privileges locally.
summary: >-
  Concurrent execution using shared resource with improper synchronization
  ('race condition') in Windows Shell allows an authorized attacker to elevate
  privileges locally.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-362
vendor: microsoft
product: windows_10_1809
affected:
  - windows_10_1809 < 10.0.17763.8146
  - windows_10_21h2 < 10.0.19044.6691
  - windows_10_22h2 < 10.0.19045.6691
  - windows_11_23h2 < 10.0.22631.6345
  - windows_11_24h2 < 10.0.26100.7392
  - windows_11_25h2 < 10.0.26200.7392
  - windows_server_2019 < 10.0.17763.8146
  - windows_server_2022 < 10.0.20348.4467
  - windows_server_2022_23h2 < 10.0.25398.2025
  - windows_server_2025 < 10.0.26100.7392
patched:
  - windows_10_1809 10.0.17763.8146
  - windows_10_21h2 10.0.19044.6691
  - windows_10_22h2 10.0.19045.6691
  - windows_11_23h2 10.0.22631.6345
  - windows_11_24h2 10.0.26100.7392
  - windows_11_25h2 10.0.26200.7392
  - windows_server_2019 10.0.17763.8146
  - windows_server_2022 10.0.20348.4467
  - windows_server_2022_23h2 10.0.25398.2025
  - windows_server_2025 10.0.26100.7392
published: '2025-12-09'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T23:10:00.463'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64658'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64658'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.00312
epssPercentile: 0.21451
ingestedAt: '2026-09-25T23:21:16.905Z'
---

## Overview

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an authorized attacker to elevate privileges locally.

## Affected

- `windows_10_1809 < 10.0.17763.8146`
- `windows_10_21h2 < 10.0.19044.6691`
- `windows_10_22h2 < 10.0.19045.6691`
- `windows_11_23h2 < 10.0.22631.6345`
- `windows_11_24h2 < 10.0.26100.7392`
- `windows_11_25h2 < 10.0.26200.7392`
- `windows_server_2019 < 10.0.17763.8146`
- `windows_server_2022 < 10.0.20348.4467`
- `windows_server_2022_23h2 < 10.0.25398.2025`
- `windows_server_2025 < 10.0.26100.7392`

## Remediation

Upgrade past the affected range:

- `windows_10_1809 10.0.17763.8146`
- `windows_10_21h2 10.0.19044.6691`
- `windows_10_22h2 10.0.19045.6691`
- `windows_11_23h2 10.0.22631.6345`
- `windows_11_24h2 10.0.26100.7392`
- `windows_11_25h2 10.0.26200.7392`
- `windows_server_2019 10.0.17763.8146`
- `windows_server_2022 10.0.20348.4467`
- `windows_server_2022_23h2 10.0.25398.2025`
- `windows_server_2025 10.0.26100.7392`