CVE-2025-53809— Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
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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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 ~ 10.0.26100.6584 | - | |
| Microsoft | Windows Server 2025 | 10.0.26100.0 ~ 10.0.26100.6584 | - | |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 ~ 10.0.26100.6584 | - |
II. Public POCs for CVE-2025-53809
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Microsoft · 2025-09-09 · 80 CVEs total
| CVE-2025-55232 | 9.8 CRITICAL | Microsoft High Performance Compute (HPC) Pack Remote Code Execution Vulnerability |
| CVE-2025-55234 | 8.8 HIGH | Windows SMB Elevation of Privilege Vulnerability |
| CVE-2025-54897 | 8.8 HIGH | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2025-54110 | 8.8 HIGH | Windows Kernel Elevation of Privilege Vulnerability |
| CVE-2025-54106 | 8.8 HIGH | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2025-54113 | 8.8 HIGH | Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability |
| CVE-2025-54918 | 8.8 HIGH | Windows NTLM Elevation of Privilege Vulnerability |
| CVE-2025-55227 | 8.8 HIGH | Microsoft SQL Server Elevation of Privilege Vulnerability |
| CVE-2025-54910 | 8.4 HIGH | Microsoft Office Remote Code Execution Vulnerability |
| CVE-2025-55228 | 7.8 HIGH | Windows Graphics Component Remote Code Execution Vulnerability |
| CVE-2025-54913 | 7.8 HIGH | Windows UI XAML Maps MapControlSettings Elevation of Privilege Vulnerability |
| CVE-2025-49692 | 7.8 HIGH | Azure Connected Machine Agent Elevation of Privilege Vulnerability |
| CVE-2025-55245 | 7.8 HIGH | Xbox Gaming Services Elevation of Privilege Vulnerability |
| CVE-2025-55316 | 7.8 HIGH | Azure Connected Machine Agent Elevation of Privilege Vulnerability |
| CVE-2025-55317 | 7.8 HIGH | Microsoft AutoUpdate (MAU) Elevation of Privilege Vulnerability |
| CVE-2025-54916 | 7.8 HIGH | Windows NTFS Remote Code Execution Vulnerability |
| CVE-2025-54912 | 7.8 HIGH | Windows BitLocker Elevation of Privilege Vulnerability |
| CVE-2025-54900 | 7.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2025-54098 | 7.8 HIGH | Windows Hyper-V Elevation of Privilege Vulnerability |
| CVE-2025-55224 | 7.8 HIGH | Windows Hyper-V Remote Code Execution Vulnerability |
Showing top 20 of 80 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same weakness: CWE-20
V. Comments for CVE-2025-53809
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