发布日期：2026-06-10
更新日期：2026-06-10

受影响系统：

Microsoft Windows Windows Server 2025 (Server Co
Microsoft Windows Windows Server 2025
Microsoft Windows Windows Server 2022 (Server Co
Microsoft Windows Windows Server 2022
Microsoft Windows Windows Server 2019 (Server Co
Microsoft Windows Windows Server 2019
Microsoft Windows Windows 11 version 26H1 for x6
Microsoft Windows Windows 11 Version 26H1 for AR
Microsoft Windows Windows 11 Version 25H2 for x6
Microsoft Windows Windows 11 Version 25H2 for AR
Microsoft Windows Windows 11 Version 24H2 for x6
Microsoft Windows Windows 11 Version 24H2 for AR
Microsoft Windows Windows 11 Version 23H2 for x6
Microsoft Windows Windows 11 Version 23H2 for AR
Microsoft Windows Windows 10 Version 22H2 for x6
Microsoft Windows Windows 10 Version 22H2 for AR
Microsoft Windows Windows 10 Version 22H2 for 32
Microsoft Windows Windows 10 Version 21H2 for x6
Microsoft Windows Windows 10 Version 21H2 for AR
Microsoft Windows Windows 10 Version 21H2 for 32
Microsoft Windows Windows 10 Version 1809 for x6
Microsoft Windows Windows 10 Version 1809 for 32

描述：

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CVE(CAN) ID: CVE-2026-42991

Microsoft Windows Push Notifications是 Windows 系统内置的推送通知平台与服务，负责从微软云（WNS服务器）向Windows设备delivering实时通知。
Microsoft Windows Push Notifications多个版本存在权限提升漏洞，该漏洞源于该产品输入验证错误，攻击者可利用该漏洞实现获取管理用户权限。

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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：
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-42991

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严重程度：0（网友投票）