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CVE-2026-96223— Windows Hyper-V Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Windows 11 Version 24H2
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.

Windows Hyper-V 中的释放后使用（Use-after-free）漏洞，允许已授权的攻击者实现本地权限提升。

CVSS 7.8 · High

Affected Version Matrix 6

VendorProduct Version RangeStatus
Microsoft Windows 11 Version 24H2 10.0.26100.0< 10.0.26100.9711 affected
Microsoft Windows 11 Version 25H2 10.0.26200.0< 10.0.26200.9711 affected
Microsoft Windows 11 version 26H1 10.0.28000.0< 10.0.28000.3231 affected
Microsoft Windows 11 Version 26H2 10.0.26300.0< 10.0.26300.9711 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33650 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33650 affected
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I. Basic Information for CVE-2026-96223

Vulnerability Information
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Vulnerability Title
Windows Hyper-V Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Use after free in Windows Hyper-V 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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.9711 -
Microsoft Windows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.9711 -
Microsoft Windows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.3231 -
Microsoft Windows 11 Version 26H2 10.0.26300.0 ~ 10.0.26300.9711 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33650 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33650 -

II. Public POCs for CVE-2026-96223

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III. Intelligence Information for CVE-2026-96223

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Vendor Advisories for CVE-2026-96223 (1)

Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total

CVE-2026-96113 9.8 CRITICAL Windows Domain Name Service Remote Code Execution Vulnerability
CVE-2026-88156 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-88178 9.8 CRITICAL Microsoft Office PowerPoint Remote Code Execution Vulnerability
CVE-2026-96219 9.8 CRITICAL Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerabi
CVE-2026-85814 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-85809 9.8 CRITICAL Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-85806 9.8 CRITICAL Network Policy Server (NPS) Remote Code Execution Vulnerability
CVE-2026-83862 9.8 CRITICAL Windows Network Load Balancing Remote Code Execution Vulnerability
CVE-2026-96864 9.8 CRITICAL Microsoft Failover Cluster Virtual Driver Remote Code Execution Vulnerability
CVE-2026-85792 9.8 CRITICAL Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-97749 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-97016 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-97816 9.8 CRITICAL Microsoft OpenSSH for Windows Remote Code Execution Vulnerability
CVE-2026-70242 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-70153 9.8 CRITICAL Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
CVE-2026-97814 9.8 CRITICAL Windows Text Shaping Remote Code Execution Vulnerability
CVE-2026-100219 9.8 CRITICAL Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-97815 9.8 CRITICAL Windows Error Reporting Remote Code Execution Vulnerability
CVE-2026-69639 9.8 CRITICAL Windows libarchive Remote Code Execution Vulnerability
CVE-2026-83910 9.8 CRITICAL RPC Runtime Library Remote Code Execution Vulnerability

Showing top 20 of 1407 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 11 Version 24H2
Same vendor: Microsoft
Same weakness: CWE-416

V. Comments for CVE-2026-96223

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