发布日期：2026-01-13
更新日期：2026-05-09

受影响系统：

Microsoft Windows SMB Server

描述：

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CVE(CAN) ID: CVE-2026-20848

Microsoft Windows SMB Server是美国微软（Microsoft）公司的一个网络文件共享协议，它允许计算机上的应用程序读取和写入文件以及从计算机网络中的服务器程序请求服务。

Microsoft Windows SMB Server存在竞争条件漏洞，该漏洞源于程序未对共享资源的并发访问操作进行正确同步处理，已认证攻击者可利用该漏洞通过网络实现权限提升，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 installation),Windows Server 2022,Windows Server 2022 (Server Core installation),Windows 10 Version 21H2 for 32-bit Systems,Windows 10 Version 21H2 for ARM64-based Systems,Windows 10 Version 21H2 for x64-based Systems,Windows 10 Version 22H2 for x64-based Systems,Windows 10 Version 22H2 for ARM64-based Systems,Windows 10 Version 22H2 for 32-bit Systems,Windows Server 2025 (Server Core installation),Windows 11 Version 25H2 for ARM64-based Systems,Windows 11 Version 25H2 for x64-based Systems,Windows 11 Version 23H2 for ARM64-based Systems,Windows 11 Version 23H2 for x64-based Systems,Windows Server 2022, 23H2 Edition (Server Core installation),Windows 11 Version 24H2 for ARM64-based Systems,Windows 11 Version 24H2 for x64-based Systems,Windows Server 2025,Windows 10 Version 1607 for 32-bit Systems,Windows 10 Version 1607 for x64-based Systems,Windows Server 2016,Windows Server 2016 (Server Core installation),Windows Server 2012,Windows Server 2012 (Server Core installation),Windows Server 2012 R2,Windows Server 2012 R2 (Server Core installation)。

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建议：

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厂商补丁：

Microsoft
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目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

http://technet.microsoft.com/security/bulletin/

浏览次数：29
严重程度：0（网友投票）