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I. Basic Information for CVE-2025-21420
Vulnerability Information
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Vulnerability Title
Windows Disk Cleanup Tool Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Windows Disk Cleanup Tool Elevation of Privilege Vulnerability
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows 后置链接漏洞
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存在后置链接漏洞。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 Server 2022 (Server Core installation),Windows Server 2022,Windows Server 2019 (Server Core installation),Windows 10 Version 21H2 for x64-based
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 ~ 10.0.10240.20915 -
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.7785 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.6893 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.5487 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.5487 -
MicrosoftWindows 11 version 22H2 10.0.22621.0 ~ 10.0.22621.4890 -
MicrosoftWindows 11 version 22H3 10.0.22631.0 ~ 10.0.22631.4890 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.4890 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.3194 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.25317 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25317 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22417 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22417 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.7785 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.7785 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.6893 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.6893 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.3207 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.1425 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.3194 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.3194 -
II. Public POCs for CVE-2025-21420
#POC DescriptionSource LinkShenlong Link
1We found a way to DLL sideload with cleanmgr.exehttps://github.com/Network-Sec/CVE-2025-21420-PoCPOC Details
2Exploiting a vulnerability in Windows Disk Cleanup to elevate privileges and provide access to protected data in Edge by bypassing the security feature. CVE-2025-21420 and CVE-2025-21401.https://github.com/toxy4ny/edge-maradeurPOC Details
3Proof of Concept CVE-2025-21420 (Windows Disk Cleanup Tool EoP)https://github.com/moiz-2x/CVE-2025-21420_POCPOC Details
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III. Intelligence Information for CVE-2025-21420
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IV. Related Vulnerabilities
Same product: Windows 10 Version 1507
Same vendor: Microsoft
Same weakness: CWE-59
V. Comments for CVE-2025-21420

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