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CVE-2026-41089— Windows Netlogon Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Windows Server 2012
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows Netlogon是美国微软（Microsoft）公司的Windows的一个重要组件，主要功能是用户和机器在域内网络上的认证，以及复制数据库以进行域控备份，同时还用于维护域成员与域之间、域与域控之间、域DC与跨域DC之间的关系。 Microsoft Windows Netlogon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 Server 2016,Windows Server 2016 (Server Core installa

CVSS 9.8 · Critical EPSS 0.97% · P61

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26079 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26079 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23181 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23181 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9140 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9140 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.8755 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.8755 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5139 affected
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0< 10.0.25398.2330 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.32860 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.32860 affected
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I. Basic Information for CVE-2026-41089

Vulnerability Information
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Vulnerability Title
Windows Netlogon Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Netlogon 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Netlogon是美国微软（Microsoft）公司的Windows的一个重要组件，主要功能是用户和机器在域内网络上的认证，以及复制数据库以进行域控备份，同时还用于维护域成员与域之间、域与域控之间、域DC与跨域DC之间的关系。 Microsoft Windows Netlogon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 Server 2016,Windows Server 2016 (Server Core installa
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 Server 2012 6.2.9200.0 ~ 6.2.9200.26079 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26079 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23181 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23181 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9140 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9140 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.8755 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.8755 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5139 -
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.2330 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.32860 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.32860 -

II. Public POCs for CVE-2026-41089

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 12019 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-41089

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Vendor Advisories for CVE-2026-41089 (1)

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

CVE-2026-42898 9.9 CRITICAL Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2026-42823 9.9 CRITICAL Azure Logic Apps Elevation of Privilege Vulnerability
CVE-2026-41096 9.8 CRITICAL Windows DNS Client Remote Code Execution Vulnerability
CVE-2026-40379 9.3 CRITICAL Azure Entra ID Spoofing Vulnerability
CVE-2026-40402 9.3 CRITICAL Windows Hyper-V Elevation of Privilege Vulnerability
CVE-2026-42833 9.1 CRITICAL Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
CVE-2026-33117 9.1 CRITICAL Azure SDK for Java Security Feature Bypass Vulnerability
CVE-2026-41103 9.1 CRITICAL Microsoft SSO Plugin for Jira & Confluence Elevation of Privilege Vulnerability
CVE-2026-41613 8.8 HIGH Visual Studio Code Elevation of Privilege Vulnerability
CVE-2026-35436 8.8 HIGH Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
CVE-2026-40357 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-41094 8.8 HIGH Microsoft Data Formulator Remote Code Execution Vulnerability
CVE-2026-41109 8.8 HIGH GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
CVE-2026-40420 8.8 HIGH Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
CVE-2026-40403 8.8 HIGH Windows Graphics Component Remote Code Execution Vulnerability
CVE-2026-40370 8.8 HIGH SQL Server Remote Code Execution Vulnerability
CVE-2026-41086 8.8 HIGH Windows Admin Center in Azure Portal Elevation of Privilege Vulnerability
CVE-2026-35439 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-33112 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-34329 8.8 HIGH Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

Showing top 20 of 125 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows Server 2012
Same vendor: Microsoft
Same weakness: CWE-121

V. Comments for CVE-2026-41089

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