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CVE-2026-26159— Remote Desktop Licensing Service 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 Windows Remote Desktop Licensing Service是美国微软（Microsoft）公司的一个负责管理和验证远程桌面连接的授权许可证。 Microsoft Windows Remote Desktop Licensing Service存在访问控制错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-

CVSS 7.8 · High EPSS 0.30% · P21

Affected Version Matrix 21

VendorProduct Version RangeStatus
Microsoft Windows 10 Version 1607 10.0.14393.0< 10.0.14393.9060 affected
Microsoft Windows 10 Version 1809 10.0.17763.0< 10.0.17763.8644 affected
Microsoft Windows 10 Version 21H2 10.0.19044.0< 10.0.19044.7184 affected
Microsoft Windows 10 Version 22H2 10.0.19045.0< 10.0.19045.7184 affected
Microsoft Windows 11 version 22H3 10.0.22631.0< 10.0.22631.6936 affected
Microsoft Windows 11 Version 23H2 10.0.22631.0< 10.0.22631.6936 affected
Microsoft Windows 11 Version 24H2 10.0.26100.0< 10.0.26100.8246 affected
Microsoft Windows 11 Version 25H2 10.0.26200.0< 10.0.26200.8246 affected
Microsoft Windows 11 version 26H1 10.0.28000.0< 10.0.28000.1836 affected
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26026 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26026 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23132 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23132 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9060 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9060 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.8644 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.8644 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5020 affected
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0< 10.0.25398.2274 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.32690 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.32690 affected
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I. Basic Information for CVE-2026-26159

Vulnerability Information
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Vulnerability Title
Remote Desktop Licensing Service Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authentication for critical function in Windows Remote Desktop Licensing Service 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
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Remote Desktop Licensing Service 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Remote Desktop Licensing Service是美国微软（Microsoft）公司的一个负责管理和验证远程桌面连接的授权许可证。 Microsoft Windows Remote Desktop Licensing Service存在访问控制错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-
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 ~ 10.0.14393.9060 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.8644 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.7184 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.7184 -
Microsoft Windows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.6936 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.6936 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.8246 -
Microsoft Windows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.8246 -
Microsoft Windows 11 version 26H1 10.0.28000.0 ~ 10.0.28000.1836 -
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26026 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26026 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23132 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23132 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9060 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9060 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.8644 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.8644 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5020 -
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.2274 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.32690 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.32690 -

II. Public POCs for CVE-2026-26159

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III. Intelligence Information for CVE-2026-26159

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Same Patch Batch · Microsoft · 2026-04-14 · 163 CVEs total

CVE-2026-33824 9.8 CRITICAL Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability
CVE-2026-26149 9.0 CRITICAL Microsoft Power Apps Desktop Client Spoofing Vulnerability
CVE-2026-26178 8.8 HIGH Windows Advanced Rasterization Platform Elevation of Privilege Vulnerability
CVE-2026-33120 8.8 HIGH Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-32157 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2026-32171 8.8 HIGH Azure Logic Apps Elevation of Privilege Vulnerability
CVE-2026-32225 8.8 HIGH Windows Shell Security Feature Bypass Vulnerability
CVE-2026-26167 8.8 HIGH Windows Push Notifications Elevation of Privilege Vulnerability
CVE-2026-27928 8.7 HIGH Windows Hello Security Feature Bypass Vulnerability
CVE-2026-32162 8.4 HIGH Windows COM Elevation of Privilege Vulnerability
CVE-2026-33115 8.4 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2026-32091 8.4 HIGH Microsoft Brokering File System Elevation of Privilege Vulnerability
CVE-2026-32221 8.4 HIGH Windows Graphics Component Remote Code Execution Vulnerability
CVE-2026-32190 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2026-33114 8.4 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2026-33827 8.1 HIGH Windows TCP/IP Remote Code Execution Vulnerability
CVE-2026-33826 8.0 HIGH Windows Active Directory Remote Code Execution Vulnerability
CVE-2026-27912 8.0 HIGH Windows Kerberos Elevation of Privilege Vulnerability
CVE-2026-33095 7.8 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2026-32192 7.8 HIGH Azure Monitor Agent Elevation of Privilege Vulnerability

Showing top 20 of 163 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607
Same vendor: Microsoft
Same weakness: CWE-306

V. Comments for CVE-2026-26159

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