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CVE-2026-40403— Microsoft Win32k 安全漏洞

CVSS 8.8 · High EPSS 0.01% · P4

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 21

ベンダープロダクトVersion Rangeステータス
MicrosoftWindows 10 Version 160710.0.14393.0< 10.0.14393.9140affected
MicrosoftWindows 10 Version 180910.0.17763.0< 10.0.17763.8755affected
MicrosoftWindows 10 Version 21H210.0.19044.0< 10.0.19044.7291affected
MicrosoftWindows 10 Version 22H210.0.19045.0< 10.0.19045.7291affected
MicrosoftWindows 11 version 22H310.0.22631.0< 10.0.22631.7079affected
MicrosoftWindows 11 Version 23H210.0.22631.0< 10.0.22631.7079affected
MicrosoftWindows 11 Version 24H210.0.26100.0< 10.0.26100.8457affected
MicrosoftWindows 11 Version 25H210.0.26200.0< 10.0.26200.8457affected
MicrosoftWindows 11 version 26H110.0.28000.0< 10.0.28000.2113affected
MicrosoftWindows Server 20126.2.9200.0< 6.2.9200.26079affected
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0< 6.2.9200.26079affected
MicrosoftWindows Server 2012 R26.3.9600.0< 6.3.9600.23181affected
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0< 6.3.9600.23181affected
MicrosoftWindows Server 201610.0.14393.0< 10.0.14393.9140affected
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0< 10.0.14393.9140affected
MicrosoftWindows Server 201910.0.17763.0< 10.0.17763.8755affected
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0< 10.0.17763.8755affected
MicrosoftWindows Server 202210.0.20348.0< 10.0.20348.5139affected
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0< 10.0.25398.2330affected
MicrosoftWindows Server 202510.0.26100.0< 10.0.26100.32860affected
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0< 10.0.26100.32860affected
新しい脆弱性情報の通知を購読するログインして購読

I. CVE-2026-40403の基本情報

脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
Shenlongの10の質問を表示 ↗

高度な大規模言語モデル技術を使用していますが、出力には不正確または古い情報が含まれる可能性があります。Shenlongはデータの正確性を確保するよう努めていますが、実際の状況に基づいて検証・判断してください。

脆弱性タイトル
Windows Graphics Component Remote Code Execution Vulnerability
ソース: NVD (National Vulnerability Database)
脆弱性説明
Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
堆缓冲区溢出
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Microsoft Win32k 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Microsoft Win32k是美国微软（Microsoft）公司的一个用于Windows多用户管理的系统文件。 Microsoft Win32k存在安全漏洞。攻击者利用该漏洞可以远程执行代码。以下产品和版本受到影响：Windows 11 Version 23H2 for ARM64-based Systems,Windows 11 Version 23H2 for x64-based Systems,Windows Server 2022, 23H2 Edition (Server Core inst
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.9140 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.8755 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.7291 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.7291 -
MicrosoftWindows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.7079 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.7079 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.8457 -
MicrosoftWindows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.8457 -
MicrosoftWindows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.2113 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.26079 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26079 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23181 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23181 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.9140 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9140 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.8755 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.8755 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.5139 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.2330 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.32860 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.32860 -

II. CVE-2026-40403の公開POC

#POC説明ソースリンクShenlongリンク
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III. CVE-2026-40403のインテリジェンス情報

请登录查看更多情报信息。

Same Patch Batch · Microsoft · 2026-05-12 · 125 CVEs total

CVE-2026-428989.9 CRITICALMicrosoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2026-428239.9 CRITICALAzure Logic Apps Elevation of Privilege Vulnerability
CVE-2026-410969.8 CRITICALWindows DNS Client Remote Code Execution Vulnerability
CVE-2026-410899.8 CRITICALWindows Netlogon Remote Code Execution Vulnerability
CVE-2026-403799.3 CRITICALAzure Entra ID Spoofing Vulnerability
CVE-2026-404029.3 CRITICALWindows Hyper-V Elevation of Privilege Vulnerability
CVE-2026-428339.1 CRITICALMicrosoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2026-331179.1 CRITICALAzure SDK for Java Security Feature Bypass Vulnerability
CVE-2026-411039.1 CRITICALMicrosoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability
CVE-2026-403578.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-411098.8 HIGHGitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
CVE-2026-354368.8 HIGHMicrosoft Office Click-To-Run Elevation of Privilege Vulnerability
CVE-2026-404208.8 HIGHMicrosoft Office Click-To-Run Elevation of Privilege Vulnerability
CVE-2026-354398.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-410948.8 HIGHMicrosoft Data Formulator Remote Code Execution Vulnerability
CVE-2026-410868.8 HIGHWindows Admin Center in Azure Portal Elevation of Privilege Vulnerability
CVE-2026-331108.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-343298.8 HIGHMicrosoft Message Queuing (MSMQ) Remote Code Execution Vulnerability
CVE-2026-403658.8 HIGHMicrosoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-403708.8 HIGHSQL Server Remote Code Execution Vulnerability

Showing 20 of 125 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Windows 10 Version 1607
同じベンダー: Microsoft
同じ弱点: CWE-122

V. CVE-2026-40403へのコメント

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