---
id: CVE-2025-62463
title: >-
  Null pointer dereference in Windows DirectX allows an authorized attacker to
  deny service locally.
summary: >-
  Null pointer dereference in Windows DirectX allows an authorized attacker to
  deny service locally.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: microsoft
product: windows_10_21h2
affected:
  - 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_2022 < 10.0.20348.4467
  - windows_server_2022_23h2 < 10.0.25398.2025
  - windows_server_2025 < 10.0.26100.7392
patched:
  - 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_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: '2026-09-30'
sourceUpdated: '2026-09-30T20:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62463'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62463'
    label: secure@microsoft.com
tags:
  - nvd
epss: 0.00461
epssPercentile: 0.37606
ingestedAt: '2026-09-30T20:23:19.445Z'
---

## Overview

Null pointer dereference in Windows DirectX allows an authorized attacker to deny service locally.

## Affected

- `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_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_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_2022 10.0.20348.4467`
- `windows_server_2022_23h2 10.0.25398.2025`
- `windows_server_2025 10.0.26100.7392`