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CVE-2025-55234— Windows SMB Elevation of Privilege Vulnerability

CVSS 8.8 · High EPSS 0.33% · P56
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I. Basic Information for CVE-2025-55234

Vulnerability Information
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Vulnerability Title
Windows SMB Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks: Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server Hardening—SMB Server Signing & SMB Server EPA. Adopt appropriate SMB Server hardening measures.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows SMB Server 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows SMB Server是美国微软（Microsoft）公司的一个网络文件共享协议。它允许计算机上的应用程序读取和写入文件以及从计算机网络中的服务器程序请求服务。 Microsoft Windows SMB Server存在授权问题漏洞。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-based Systems,Wind
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

VendorProductAffected VersionsCPESubscribe
MicrosoftWindows 10 Version 1507 10.0.10240.0 ~ 10.0.10240.21128 -
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.8422 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.7792 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.6332 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.6332 -
MicrosoftWindows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.5909 -
MicrosoftWindows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.5909 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.5909 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.6584 -
MicrosoftWindows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.27929 -
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.27929 -
MicrosoftWindows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.23529 -
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.23529 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.25675 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25675 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22774 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22774 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.8422 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.8422 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.7792 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.7792 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.4171 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1849 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.6584 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.6584 -

II. Public POCs for CVE-2025-55234

#POC DescriptionSource LinkShenlong Link
1This vulnerability allows attackers to perform relay attacks against the SMB (Server Message Block) protocol. If successful, it can lead to Elevation of Privilege (EoP) essentially allowing unauthorized users to gain higher-level access on a systemhttps://github.com/mrk336/CVE-2025-55234POC Details
2This playbook outlines detection, containment, and remediation strategies for CVE-2025-55234, a critical Windows SMB privilege escalation flaw.https://github.com/mrk336/Patch-the-Path-CVE-2025-55234-Detection-DefensePOC Details
3Windows SMB Server Elevation of Privilege Vulnerabilityhttps://github.com/h4xnz/CVE-2025-55234-POCPOC Details
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III. Intelligence Information for CVE-2025-55234

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Same Patch Batch · Microsoft · 2025-09-09 · 80 CVEs total

CVE-2025-552329.8 CRITICALMicrosoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability
CVE-2025-552278.8 HIGHMicrosoft SQL Server Elevation of Privilege Vulnerability
CVE-2025-541138.8 HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-549188.8 HIGHWindows NTLM Elevation of Privilege Vulnerability
CVE-2025-541068.8 HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-541108.8 HIGHWindows Kernel Elevation of Privilege Vulnerability
CVE-2025-548978.8 HIGHMicrosoft SharePoint Remote Code Execution Vulnerability
CVE-2025-549108.4 HIGHMicrosoft Office Remote Code Execution Vulnerability
CVE-2025-552247.8 HIGHWindows Hyper-V Remote Code Execution Vulnerability
CVE-2025-538017.8 HIGHMicrosoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2025-540927.8 HIGHWindows Hyper-V Elevation of Privilege Vulnerability
CVE-2025-549007.8 HIGHMicrosoft Excel Remote Code Execution Vulnerability
CVE-2025-540987.8 HIGHWindows Hyper-V Elevation of Privilege Vulnerability
CVE-2025-549127.8 HIGHWindows BitLocker Elevation of Privilege Vulnerability
CVE-2025-553167.8 HIGHAzure Connected Machine Agent Elevation of Privilege Vulnerability
CVE-2025-552457.8 HIGHXbox Gaming Services Elevation of Privilege Vulnerability
CVE-2025-552287.8 HIGHWindows Graphics Component Remote Code Execution Vulnerability
CVE-2025-549137.8 HIGHWindows UI XAML Maps MapControlSettings Elevation of Privilege Vulnerability
CVE-2025-549167.8 HIGHWindows NTFS Remote Code Execution Vulnerability
CVE-2025-549087.8 HIGHMicrosoft PowerPoint Remote Code Execution Vulnerability

Showing top 20 of 80 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-287

V. Comments for CVE-2025-55234

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