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CVE-2025-26634— Windows Core Messaging Elevation of Privileges Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1507
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是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在安全漏洞。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,Windows Server 2019,Windows Server 2019 (Server Core installatio

CVSS 7.5 · High EPSS 0.65% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-26634

Vulnerability Information
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Vulnerability Title
Windows Core Messaging Elevation of Privileges Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows是美国微软（Microsoft）公司的一套个人设备使用的操作系统。 Microsoft Windows存在安全漏洞。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,Windows Server 2019,Windows Server 2019 (Server Core installatio
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 1507 10.0.10240.0 ~ 10.0.10240.20915 -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.5487 -
Microsoft Windows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.5487 -
Microsoft Windows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.4890 -
Microsoft Windows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.4890 -
Microsoft Windows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.4890 -
Microsoft Windows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.7785 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.6893 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.3207 -
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1425 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.3194 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.3194 -

II. Public POCs for CVE-2025-26634

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III. Intelligence Information for CVE-2025-26634

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Vendor Advisories for CVE-2025-26634 (1)

Same Patch Batch · Microsoft · 2025-03-11 · 57 CVEs total

CVE-2025-26645 8.8 HIGH Remote Desktop Client Remote Code Execution Vulnerability
CVE-2025-24056 8.8 HIGH Windows Telephony Service Remote Code Execution Vulnerability
CVE-2025-24051 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2025-24084 8.4 HIGH Windows Subsystem for Linux (WSL2) Kernel Remote Code Execution Vulnerability
CVE-2025-24049 8.4 HIGH Azure Command Line Integration (CLI) Elevation of Privilege Vulnerability
CVE-2025-24045 8.1 HIGH Windows Remote Desktop Services Remote Code Execution Vulnerability
CVE-2025-24035 8.1 HIGH Windows Remote Desktop Services Remote Code Execution Vulnerability
CVE-2025-24064 8.1 HIGH Windows Domain Name Service Remote Code Execution Vulnerability
CVE-2025-24046 7.8 HIGH Kernel Streaming Service Driver Elevation of Privilege Vulnerability
CVE-2025-24048 7.8 HIGH Windows Hyper-V Elevation of Privilege Vulnerability
CVE-2025-24050 7.8 HIGH Windows Hyper-V Elevation of Privilege Vulnerability
CVE-2025-24067 7.8 HIGH Kernel Streaming Service Driver Elevation of Privilege Vulnerability
CVE-2025-24061 7.8 HIGH Windows Mark of the Web Security Feature Bypass Vulnerability
CVE-2025-24059 7.8 HIGH Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2025-24066 7.8 HIGH Kernel Streaming Service Driver Elevation of Privilege Vulnerability
CVE-2025-24993 7.8 HIGH Windows NTFS Remote Code Execution Vulnerability
CVE-2025-24044 7.8 HIGH Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVE-2025-26630 7.8 HIGH Microsoft Access Remote Code Execution Vulnerability
CVE-2025-26629 7.8 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2025-24075 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability

Showing top 20 of 57 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-122

V. Comments for CVE-2025-26634

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