CVE-2026-61938— Windows Installer Elevation of Privilege Vulnerability
Possible ATT&CK Techniques 1AI
T1211 · Exploitation for StealthAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| 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 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-2026-61938
Vulnerability Information
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Vulnerability Title
Windows Installer Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/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 Windows Installer 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Installer是美国Microsoft公司的一个基于Windows系统的工具组件,主要用于管理和配置软件服务。 Microsoft Windows Installer存在资源管理错误漏洞，该漏洞源于释放后重用，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 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 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-2026-61938
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2026-61938 (1)
Same Patch Batch · Microsoft · 2026-08-11 · 402 CVEs total
| CVE-2026-62878 | 9.8 CRITICAL | Windows DNS Server Remote Code Execution Vulnerability |
| CVE-2026-62893 | 9.8 CRITICAL | Windows Deployment Services TFTP Server Remote Code Execution Vulnerability |
| CVE-2026-62815 | 9.8 CRITICAL | Microsoft QUIC Remote Code Execution Vulnerability |
| 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-2026-50516 | 9.4 CRITICAL | Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability |
| CVE-2026-70306 | 9.3 CRITICAL | Microsoft Office SharePoint Spoofing Vulnerability |
| CVE-2026-65767 | 8.8 HIGH | Microsoft Teams for Android and iOS Spoofing Vulnerability |
| CVE-2026-65807 | 8.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2026-62795 | 8.8 HIGH | Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability |
| CVE-2026-62817 | 8.8 HIGH | Windows DNS Server Remote Code Execution Vulnerability |
| CVE-2026-62816 | 8.8 HIGH | Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability |
| CVE-2026-69320 | 8.8 HIGH | Visual Studio Code Remote Code Execution Vulnerability |
| CVE-2026-62818 | 8.8 HIGH | Windows Active Directory Certificate Services (AD CS) Remote Code Execution Vulnerability |
| CVE-2026-62872 | 8.8 HIGH | .NET Framework Elevation of Privilege 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 |
| CVE-2026-70324 | 8.8 HIGH | Microsoft SharePoint Elevation of Privilege Vulnerability |
| CVE-2026-70329 | 8.8 HIGH | Microsoft Outlook Remote Code Execution Vulnerability |
| CVE-2026-66805 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
Showing top 20 of 402 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Windows 11 Version 24H2
- CVE-2026-56179
Windows Network Address Translation (NAT) Spoofing Vulnerabi - CVE-2026-65781
Windows Autopilot Elevation of Privilege Vulnerability - CVE-2026-65782
Windows Autopilot Elevation of Privilege Vulnerability - CVE-2026-65778
Windows Autopilot Elevation of Privilege Vulnerability - CVE-2026-65780
Windows Autopilot Elevation of Privilege Vulnerability
Same vendor: Microsoft
- CVE-2026-69414
Microsoft Defender Elevation of Privilege Vulnerability - CVE-2026-50523
Microsoft PowerShell Remote Code Execution Vulnerability - CVE-2026-72970
Microsoft Edge (Chromium-based) Remote Code Execution Vulner - CVE-2026-73299
Prompty: Server-Side Template Injection to Remote Code Execu - CVE-2026-73298
Microsoft Container Migration Solution Accelerator: Authenti
Same weakness: CWE-416
- CVE-2026-12366
Use-after-free freeing an armed dynamically-allocated k_time - CVE-2026-12365
Use-after-free in Zephyr delayable work-queue cancellation u - CVE-2026-11937
Security vulnerabilities have been found in IBM Verify Ident - CVE-2026-19548
Binutils: binutils: multiple use-after-free in add_archive_e - CVE-2026-19560
Google Chrome 资源管理错误漏洞
V. Comments for CVE-2026-61938
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