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CVE-2026-62711— Windows Win32k Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1607
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Win32k是美国Microsoft公司的一个操作系统核心内核组件。 Microsoft Win32k 存在资源管理错误漏洞，该漏洞源于Windows Win32K释放后重用，可能导致授权攻击者本地提升权限。

CVSS 7.8 · High EPSS 0.31% · P24

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows 10 Version 21H2 10.0.19044.0< 10.0.19044.7663 affected
Microsoft Windows 10 Version 22H2 10.0.19045.0< 10.0.19045.7663 affected
Microsoft Windows 11 version 23H2 10.0.22631.0< 10.0.22631.7517 affected
Microsoft Windows 11 Version 23H2 10.0.22631.0< 10.0.22631.7517 affected
Microsoft Windows 11 Version 24H2 10.0.26100.0< 10.0.26100.9168 affected
Microsoft Windows 11 Version 25H2 10.0.26200.0< 10.0.26200.9168 affected
Microsoft Windows 11 version 26H1 10.0.28000.0< 10.0.28000.2704 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26280 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26280 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23338 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23338 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9418 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.9121 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5499 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33296 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33296 affected
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I. Basic Information for CVE-2026-62711

Vulnerability Information
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Vulnerability Title
Windows Win32k Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Win32k 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Win32k是美国Microsoft公司的一个操作系统核心内核组件。 Microsoft Win32k 存在资源管理错误漏洞，该漏洞源于Windows Win32K释放后重用，可能导致授权攻击者本地提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.7663 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.7663 -
Microsoft Windows 11 version 23H2 10.0.22631.0 ~ 10.0.22631.7517 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.7517 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.9168 -
Microsoft Windows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.9168 -
Microsoft Windows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.2704 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26280 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26280 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23338 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23338 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9418 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.9121 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5499 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33296 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33296 -

II. Public POCs for CVE-2026-62711

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III. Intelligence Information for CVE-2026-62711

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Vendor Advisories for CVE-2026-62711 (1)

Same Patch Batch · Microsoft · 2026-08-11 · 402 CVEs total

CVE-2026-65791 9.8 CRITICAL Windows iSCSI Target Service Remote Code Execution Vulnerability
CVE-2026-59124 9.8 CRITICAL Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability
CVE-2026-62878 9.8 CRITICAL Windows DNS Server Remote Code Execution Vulnerability
CVE-2026-62815 9.8 CRITICAL Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-62893 9.8 CRITICAL Windows Deployment Services TFTP Server Remote Code Execution Vulnerability
CVE-2026-50516 9.4 CRITICAL Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability
CVE-2026-70306 9.3 CRITICAL Microsoft Office SharePoint Spoofing Vulnerability
CVE-2026-70329 8.8 HIGH Microsoft Outlook Remote Code Execution Vulnerability
CVE-2026-62785 8.8 HIGH Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability
CVE-2026-62816 8.8 HIGH Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
CVE-2026-65767 8.8 HIGH Microsoft Teams for Android Spoofing Vulnerability
CVE-2026-62818 8.8 HIGH Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability
CVE-2026-62800 8.8 HIGH Windows SMBv3 Server Remote Code Execution Vulnerability
CVE-2026-62790 8.8 HIGH Windows SMBv3 Server Remote Code Execution Vulnerability
CVE-2026-57104 8.8 HIGH Azure Storage Explorer Elevation of Privilege Vulnerability
CVE-2026-70336 8.8 HIGH Visual Studio Code Remote Code Execution Vulnerability
CVE-2026-66808 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-62824 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2026-62913 8.8 HIGH Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2026-70337 8.8 HIGH Microsoft PowerShell Remote Code Execution Vulnerability

Showing top 20 of 402 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607
Same vendor: Microsoft
Same weakness: CWE-416

V. Comments for CVE-2026-62711

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