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I. Basic Information for CVE-2025-53809
Vulnerability Information
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Vulnerability Title
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Microsoft Windows Local Security Authority Subsystem Service 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows Local Security Authority Subsystem Service是美国微软（Microsoft）公司的一个内部程序，负责运行Windows系统安全政策。它在用户登录时电脑单机或服务器时，验证用户身份，管理用户密码变更，并产生访问字符。它也会在窗口安全日志中留下应有的记录。 Microsoft Windows Local Security Authority Subsystem Service存在输入验证错误漏洞。攻击者利用该漏洞导致系统拒绝服务。以下
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 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.6584 -
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-2025-53809
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III. Intelligence Information for CVE-2025-53809
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IV. Related Vulnerabilities
Same product: Windows 11 Version 24H2
Same vendor: Microsoft
Same weakness: CWE-20
V. Comments for CVE-2025-53809

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