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CVE-2026-20875— Microsoft Windows Local Security Authority Subsystem Service 代码问题漏洞

CVSS 7.5 · High EPSS 1.53% · P72

可能的 ATT&CK 技术 1AI

T1499 · Endpoint Denial of Service

影响版本矩阵 24

厂商产品版本范围状态
MicrosoftWindows 10 Version 160710.0.14393.0< 10.0.14393.8783affected
MicrosoftWindows 10 Version 180910.0.17763.0< 10.0.17763.8276affected
MicrosoftWindows 10 Version 21H210.0.19044.0< 10.0.19044.6809affected
MicrosoftWindows 10 Version 22H210.0.19045.0< 10.0.19045.6809affected
MicrosoftWindows 11 version 23H210.0.22631.0< 10.0.22631.6491affected
MicrosoftWindows 11 Version 23H210.0.22631.0< 10.0.22631.6491affected
MicrosoftWindows 11 Version 24H210.0.26100.0< 10.0.26100.7623affected
MicrosoftWindows 11 Version 25H210.0.26200.0< 10.0.26200.7623affected
MicrosoftWindows Server 2008 R2 Service Pack 16.1.7601.0< 6.1.7601.28117affected
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0< 6.1.7601.28117affected
MicrosoftWindows Server 2008 Service Pack 26.0.6003.0< 6.0.6003.23717affected
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0< 6.0.6003.23717affected
MicrosoftWindows Server 20126.2.9200.0< 6.2.9200.25868affected
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0< 6.2.9200.25868affected
MicrosoftWindows Server 2012 R26.3.9600.0< 6.3.9600.22968affected
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0< 6.3.9600.22968affected
MicrosoftWindows Server 201610.0.14393.0< 10.0.14393.8783affected
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0< 10.0.14393.8783affected
MicrosoftWindows Server 201910.0.17763.0< 10.0.17763.8276affected
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0< 10.0.17763.8276affected
MicrosoftWindows Server 202210.0.20348.0< 10.0.20348.4648affected
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0< 10.0.25398.2092affected
MicrosoftWindows Server 202510.0.26100.0< 10.0.26100.32230affected
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0< 10.0.26100.32230affected
获取后续新漏洞提醒登录后订阅

一、 漏洞 CVE-2026-20875 基础信息

漏洞信息
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Vulnerability Title
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
来源: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Local Security Authority Subsystem Service 代码问题漏洞
来源: 中国国家信息安全漏洞库 CNNVD
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存在代码问题漏洞。攻击者利用该漏洞导致系统拒绝服务。以下产品
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商产品影响版本CPE订阅
MicrosoftWindows 10 Version 1607 10.0.14393.0 ~ 10.0.14393.8783 -
MicrosoftWindows 10 Version 1809 10.0.17763.0 ~ 10.0.17763.8276 -
MicrosoftWindows 10 Version 21H2 10.0.19044.0 ~ 10.0.19044.6809 -
MicrosoftWindows 10 Version 22H2 10.0.19045.0 ~ 10.0.19045.6809 -
MicrosoftWindows 11 version 23H2 10.0.22631.0 ~ 10.0.22631.6491 -
MicrosoftWindows 11 Version 23H2 10.0.22631.0 ~ 10.0.22631.6491 -
MicrosoftWindows 11 Version 24H2 10.0.26100.0 ~ 10.0.26100.7623 -
MicrosoftWindows 11 Version 25H2 10.0.26200.0 ~ 10.0.26200.7623 -
MicrosoftWindows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ 6.1.7601.28117 -
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ 6.1.7601.28117 -
MicrosoftWindows Server 2008 Service Pack 2 6.0.6003.0 ~ 6.0.6003.23717 -
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ 6.0.6003.23717 -
MicrosoftWindows Server 2012 6.2.9200.0 ~ 6.2.9200.25868 -
MicrosoftWindows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.25868 -
MicrosoftWindows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.22968 -
MicrosoftWindows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.22968 -
MicrosoftWindows Server 2016 10.0.14393.0 ~ 10.0.14393.8783 -
MicrosoftWindows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.8783 -
MicrosoftWindows Server 2019 10.0.17763.0 ~ 10.0.17763.8276 -
MicrosoftWindows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.8276 -
MicrosoftWindows Server 2022 10.0.20348.0 ~ 10.0.20348.4648 -
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 ~ 10.0.25398.2092 -
MicrosoftWindows Server 2025 10.0.26100.0 ~ 10.0.26100.32230 -
MicrosoftWindows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.32230 -

二、漏洞 CVE-2026-20875 的公开POC

#POC 描述源链接神龙链接
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未找到公开 POC。

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三、漏洞 CVE-2026-20875 的情报信息

请登录查看更多情报信息。

同批安全公告 · Microsoft · 2026-01-13 · 共 112 条

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CVE-2026-209528.4 HIGHMicrosoft Office 资源管理错误漏洞
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CVE-2026-208568.1 HIGHMicrosoft Windows 输入验证错误漏洞
CVE-2026-209318.0 HIGHMicrosoft Windows Telephony Server 安全漏洞
CVE-2026-208577.8 HIGHMicrosoft Windows Cloud Files Mini Filter Driver 安全漏洞
CVE-2026-208327.8 HIGHMicrosoft Windows Remote Procedure Call Runtime 资源管理错误漏洞
CVE-2026-209227.8 HIGHMicrosoft Windows NTFS 安全漏洞
CVE-2026-208437.8 HIGHMicrosoft Windows Routing and Remote Access Service 访问控制错误漏洞
CVE-2026-209207.8 HIGHMicrosoft Win32k 资源管理错误漏洞
CVE-2026-208377.8 HIGHMicrosoft Windows Media 安全漏洞
CVE-2026-212247.8 HIGHMicrosoft Azure Connected Machine Agent 安全漏洞
CVE-2026-208407.8 HIGHMicrosoft Windows NTFS 安全漏洞
CVE-2026-209567.8 HIGHMicrosoft Excel 安全漏洞
CVE-2026-208777.8 HIGHMicrosoft Windows 资源管理错误漏洞
CVE-2026-208657.8 HIGHMicrosoft Windows 资源管理错误漏洞
CVE-2026-209467.8 HIGHMicrosoft Excel 缓冲区错误漏洞

显示前 20 条，共 112 条。 查看全部 &rarr; →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1607
Same vendor: Microsoft
Same weakness: CWE-476

V. Comments for CVE-2026-20875

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