通告编号:NS-2026-0002
| TAG： | 安全更新、Windows、Office、SQL Server、Azure |
| 漏洞危害： | 攻击者利用本次安全更新中的漏洞，可造成权限提升、远程代码执行等 |
| 版本： | 1.0 |
1 漏洞概述
1月14日，绿盟科技CERT监测到微软发布1月安全更新补丁，修复了112个安全问题，涉及Windows、Microsoft Office、Microsoft SQL Server、Azure等广泛使用的产品，其中包括权限提升、远程代码执行等高危漏洞类型。
本月微软月度更新修复的漏洞中，严重程度为Critical的漏洞有8个，Important漏洞有104个。其中包括1个已检测到在野利用的漏洞：
Desktop Window Manager信息泄露漏洞（CVE-2026-20805）
请相关用户尽快更新补丁进行防护，完整漏洞列表请参考附录。
参考链接：
https://msrc.microsoft.com/update-guide/releaseNote/2026-Jan
2 重点漏洞简述
根据产品流行度和漏洞重要性筛选出此次更新中包含影响较大的漏洞，请相关用户重点进行关注：
Desktop Window Manager信息泄露漏洞（CVE-2026-20805）：
Desktop Window Manager (DWM) 中存在信息泄露漏洞，由于DWM 在处理与远程 ALPC端口相关的操作时未能正确防护内存信息，经过身份验证的攻击者可通过特制请求获取系统的敏感信息。该漏洞已存在在野利用，CVSS评分5.5。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20805
Microsoft Office远程代码执行漏洞（CVE-2026-20952/CVE-2026-20953）：
Microsoft Office中存在远程代码执行漏洞，由于Microsoft Office在处理特制文档时的释放后重用（use-after-free）问题，未经身份验证的攻击者可通过向用户发送含恶意链接的邮件，用户预览或点击后会导致远程代码执行。CVSS评分8.4。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20952
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20953
Microsoft Excel远程代码执行漏洞（CVE-2026-20955/CVE-2026-20957）：
Microsoft Excel中存在远程代码执行漏洞，由于Excel的不可信指针解引用与整数下溢问题，未经身份验证的攻击者可以通过制作恶意的文件诱使用户打开，从而在受害者主机上执行任意代码。CVSS评分7.8。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20955
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20957
Microsoft Word远程代码执行漏洞（CVE-2026-20944）：
Microsoft Word中存在远程代码执行漏洞，由于Word的越界读取问题，未经身份验证的攻击者可通过制作恶意的文件诱使用户打开或预览窗格，从而在用户上下文中执行任意代码。CVSS评分8.4。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20944
Windows Local Security Authority Subsystem Service (LSASS)远程代码执行漏洞（CVE-2026-20854）:
Windows LSASS中存在远程代码执行漏洞，由于Windows LSASS的释放后重用（use-after-free）问题，经过身份验证的攻击者可通过修改特定目录属性并提供特制数据，从而导致系统引用无效内存执行任意代码。CVSS评分7.5。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20854
Windows NTFS远程代码执行漏洞（CVE-2026-20840）：
Windows NTFS中存在远程代码执行漏洞，由于Windows NTFS基于堆的缓冲区溢出，经过身份验证的攻击者可在本地执行任意代码。CVSS评分7.8。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20840
Windows Graphics Component权限提升漏洞（CVE-2026-20822）：
Windows Graphics Component中存在权限提升漏洞，经过身份验证的本地攻击者可通过条件竞争释放后重用（use-after-free）将权限提升到SYSTEM。CVSS评分7.8。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20822
Windows Virtualization-Based Security (VBS) Enclave权限提升漏洞（CVE-2026-20876）：
Windows VBS中存在权限提升漏洞，由于VBS Enclave基于堆的缓冲区溢出问题，经过身份验证的本地攻击者可将权限提升到SYSTEM。CVSS评分6.7。
官方通告链接：
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20876
3 影响范围
以下为部分重点关注漏洞的受影响产品版本，其他漏洞影响产品范围请参阅官方通告链接。
| 漏洞编号 | 受影响产品版本 |
| CVE-2026-20805 | Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 |
| CVE-2026-20952/CVE-2026-20953 | Microsoft Office 2016 (64-bit edition)
Microsoft Office 2016 (32-bit edition) Microsoft Office LTSC for Mac 2024 Microsoft Office LTSC 2024 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 32-bit editions Microsoft Office 2019 for 64-bit editions |
| CVE-2026-20955 | Microsoft Office LTSC for Mac 2024
Microsoft Office LTSC 2024 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for 32-bit editions Office Online Server |
| CVE-2026-20957 | Microsoft Excel 2016 (64-bit edition)
Microsoft Excel 2016 (32-bit edition) Microsoft Office LTSC for Mac 2024 Microsoft Office LTSC 2024 for 64-bit editions Microsoft Office LTSC 2024 for 32-bit editions Microsoft Office LTSC 2021 for 32-bit editions Microsoft Office LTSC 2021 for 64-bit editions Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for 32-bit editions Office Online Server |
| CVE-2026-20944 | Microsoft Office LTSC for Mac 2024
Microsoft Office LTSC for Mac 2021 Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft 365 Apps for Enterprise for 32-bit Systems |
| CVE-2026-20854 | Windows Server 2025
Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) |
| CVE-2026-20840 | Windows 11 Version 24H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 (Server Core installation) Windows Server 2012 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2016 (Server Core installation) Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows Server 2025 Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
| CVE-2026-20822 | Windows Server 2016 (Server Core installation)
Windows Server 2016 Windows 10 Version 1607 for x64-based Systems Windows 10 Version 1607 for 32-bit Systems Windows Server 2025 Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) Windows 10 Version 22H2 for 32-bit Systems Windows 10 Version 22H2 for ARM64-based Systems Windows 10 Version 22H2 for x64-based Systems Windows 10 Version 21H2 for x64-based Systems Windows 10 Version 21H2 for ARM64-based Systems Windows 10 Version 21H2 for 32-bit Systems Windows Server 2022 (Server Core installation) Windows Server 2022 Windows Server 2019 (Server Core installation) Windows Server 2019 Windows 10 Version 1809 for x64-based Systems Windows 10 Version 1809 for 32-bit Systems |
| CVE-2026-20876 | Windows Server 2025
Windows 11 Version 24H2 for x64-based Systems Windows 11 Version 24H2 for ARM64-based Systems Windows Server 2022, 23H2 Edition (Server Core installation) Windows 11 Version 23H2 for x64-based Systems Windows 11 Version 23H2 for ARM64-based Systems Windows 11 Version 25H2 for x64-based Systems Windows 11 Version 25H2 for ARM64-based Systems Windows Server 2025 (Server Core installation) |
4 漏洞防护
4.1 补丁更新
目前微软官方已针对受支持的产品版本发布了修复以上漏洞的安全补丁，强烈建议受影响用户尽快安装补丁进行防护，官方下载链接：
https://msrc.microsoft.com/update-guide/releaseNote/2026-Jan
注：由于网络问题、计算机环境问题等原因，Windows Update的补丁更新可能出现失败。用户在安装补丁后，应及时检查补丁是否成功更新。
右键点击Windows图标，选择“设置(N)”，选择“更新和安全”-“Windows更新”，查看该页面上的提示信息，也可点击“查看更新历史记录”查看历史更新情况。
针对未成功安装的更新，可点击更新名称跳转到微软官方下载页面，建议用户点击该页面上的链接，转到“Microsoft更新目录”网站下载独立程序包并安装。
附录：漏洞列表
| 影响产品 | CVE编号 | 漏洞标题 | 严重程度 |
| Windows | CVE-2026-20822 | Windows Graphics Component权限提升漏洞 | Critical |
| Windows | CVE-2026-20876 | Windows Virtualization-Based Security (VBS) Enclave权限提升漏洞 | Critical |
| Microsoft Office | CVE-2026-20944 | Microsoft Word远程代码执行漏洞 | Critical |
| Microsoft Office | CVE-2026-20953 | Microsoft Office远程代码执行漏洞 | Critical |
| Microsoft Office | CVE-2026-20955 | Microsoft Excel远程代码执行漏洞 | Critical |
| Windows | CVE-2026-20854 | Windows Local Security Authority Subsystem Service (LSASS)远程代码执行漏洞 | Critical |
| Microsoft Office | CVE-2026-20952 | Microsoft Office远程代码执行漏洞 | Critical |
| Microsoft Office | CVE-2026-20957 | Microsoft Excel远程代码执行漏洞 | Critical |
| Windows | CVE-2026-20962 | Dynamic Root of Trust for Measurement (DRTM)信息泄露漏洞 | Important |
| Windows | CVE-2026-21265 | Secure Boot Certificate Expiration安全功能绕过漏洞 | Important |
| Windows | CVE-2026-0386 | Windows Deployment Services远程代码执行漏洞 | Important |
| Microsoft SQL Server | CVE-2026-20803 | Microsoft SQL Server权限提升漏洞 | Important |
| Azure | CVE-2026-20965 | Windows Admin Center权限提升漏洞 | Important |
| Windows | CVE-2026-20804 | Windows Hello篡改漏洞 | Important |
| Windows | CVE-2026-20805 | Desktop Window Manager信息泄露漏洞 | Important |
| Windows | CVE-2026-20808 | Windows File Explorer权限提升漏洞 | Important |
| Windows | CVE-2026-20809 | Windows Kernel Memory权限提升漏洞 | Important |
| Windows | CVE-2026-20810 | Windows Ancillary Function Driver for WinSock权限提升漏洞 | Important |
| Windows | CVE-2026-20811 | Win32k权限提升漏洞 | Important |
| Windows | CVE-2026-20812 | LDAP篡改漏洞 | Important |
| Windows | CVE-2026-20814 | DirectX Graphics Kernel权限提升漏洞 | Important |
| Windows | CVE-2026-20815 | Capability Access Management Service (camsvc)权限提升漏洞 | Important |
| Windows | CVE-2026-20816 | Windows Installer权限提升漏洞 | Important |
| Windows | CVE-2026-20817 | Windows Error Reporting Service权限提升漏洞 | Important |
| Windows | CVE-2026-20818 | Windows Kernel信息泄露漏洞 | Important |
| Windows | CVE-2026-20819 | Windows Virtualization-Based Security (VBS)信息泄露漏洞 | Important |
| Windows | CVE-2026-20820 | Windows Common Log File System Driver权限提升漏洞 | Important |
| Windows | CVE-2026-20821 | Remote Procedure Call信息泄露漏洞 | Important |
| Windows | CVE-2026-20823 | Windows File Explorer信息泄露漏洞 | Important |
| Windows | CVE-2026-20824 | Windows Remote Assistance安全功能绕过漏洞 | Important |
| Windows | CVE-2026-20825 | Windows Hyper-V信息泄露漏洞 | Important |
| Windows | CVE-2026-20826 | Tablet Windows User Interface (TWINUI) Subsystem信息泄露漏洞 | Important |
| Windows | CVE-2026-20827 | Tablet Windows User Interface (TWINUI) Subsystem信息泄露漏洞 | Important |
| Windows | CVE-2026-20828 | Windows rndismp6.sys信息泄露漏洞 | Important |
| Windows | CVE-2026-20829 | TPM Trustlet信息泄露漏洞 | Important |
| Windows | CVE-2026-20831 | Windows Ancillary Function Driver for WinSock权限提升漏洞 | Important |
| Windows | CVE-2026-20832 | Windows Remote Procedure Call Interface Definition Language (IDL)权限提升漏洞 | Important |
| Windows | CVE-2026-20833 | Windows Kerberos信息泄露漏洞 | Important |
| Windows | CVE-2026-20834 | Windows欺骗漏洞 | Important |
| Windows | CVE-2026-20835 | Capability Access Management Service (camsvc)信息泄露漏洞 | Important |
| Windows | CVE-2026-20836 | DirectX Graphics Kernel权限提升漏洞 | Important |
| Windows | CVE-2026-20837 | Windows Media远程代码执行漏洞 | Important |
| Windows | CVE-2026-20838 | Windows Kernel信息泄露漏洞 | Important |
| Windows | CVE-2026-20839 | Windows Client-Side Caching (CSC) Service信息泄露漏洞 | Important |
| Windows | CVE-2026-20840 | Windows NTFS远程代码执行漏洞 | Important |
| Windows | CVE-2026-20842 | Microsoft DWM Core Library权限提升漏洞 | Important |
| Windows | CVE-2026-20844 | Windows Clipboard Server权限提升漏洞 | Important |
| Windows | CVE-2026-20847 | Microsoft Windows File Explorer欺骗漏洞 | Important |
| Windows | CVE-2026-20851 | Capability Access Management Service (camsvc)信息泄露漏洞 | Important |
| Windows | CVE-2026-20852 | Windows Hello篡改漏洞 | Important |
| Windows | CVE-2026-20856 | Windows Server Update Service (WSUS)远程代码执行漏洞 | Important |
| Windows | CVE-2026-20857 | Windows Cloud Files Mini Filter Driver权限提升漏洞 | Important |
| Windows | CVE-2026-20858 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20859 | Windows Kernel-Mode Driver权限提升漏洞 | Important |
| Windows | CVE-2026-20860 | Windows Ancillary Function Driver for WinSock权限提升漏洞 | Important |
| Windows | CVE-2026-20864 | Windows Connected Devices Platform Service权限提升漏洞 | Important |
| Windows | CVE-2026-20865 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20869 | Windows Local Session Manager (LSM)权限提升漏洞 | Important |
| Windows | CVE-2026-20875 | Windows Local Security Authority Subsystem Service (LSASS)拒绝服务漏洞 | Important |
| Windows | CVE-2026-20877 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20918 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20919 | Windows SMB Server权限提升漏洞 | Important |
| Windows | CVE-2026-20920 | Win32k权限提升漏洞 | Important |
| Windows | CVE-2026-20921 | Windows SMB Server权限提升漏洞 | Important |
| Windows | CVE-2026-20922 | Windows NTFS远程代码执行漏洞 | Important |
| Windows | CVE-2026-20923 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20924 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20925 | NTLM Hash Disclosure欺骗漏洞 | Important |
| Windows | CVE-2026-20926 | Windows SMB Server权限提升漏洞 | Important |
| Windows | CVE-2026-20927 | Windows SMB Server拒绝服务漏洞 | Important |
| Windows | CVE-2026-20932 | Windows File Explorer信息泄露漏洞 | Important |
| Windows | CVE-2026-20934 | Windows SMB Server权限提升漏洞 | Important |
| Windows | CVE-2026-20938 | Windows Virtualization-Based Security (VBS) Enclave权限提升漏洞 | Important |
| Windows | CVE-2026-20940 | Windows Cloud Files Mini Filter Driver权限提升漏洞 | Important |
| Microsoft Office | CVE-2026-20943 | Microsoft Office Click-To-Run权限提升漏洞 | Important |
| Microsoft Office | CVE-2026-20946 | Microsoft Excel远程代码执行漏洞 | Important |
| Microsoft Office | CVE-2026-20951 | Microsoft SharePoint Server远程代码执行漏洞 | Important |
| Microsoft Office | CVE-2026-20956 | Microsoft Excel远程代码执行漏洞 | Important |
| Microsoft Office | CVE-2026-20959 | Microsoft SharePoint Server欺骗漏洞 | Important |
| Microsoft Office | CVE-2026-20963 | Microsoft SharePoint远程代码执行漏洞 | Important |
| Windows | CVE-2026-20830 | Capability Access Management Service (camsvc)权限提升漏洞 | Important |
| Windows | CVE-2026-21221 | Capability Access Management Service (camsvc)权限提升漏洞 | Important |
| Azure | CVE-2026-21224 | Azure Connected Machine Agent权限提升漏洞 | Important |
| Microsoft Office | CVE-2026-20947 | Microsoft SharePoint Server远程代码执行漏洞 | Important |
| Windows | CVE-2026-20843 | Windows Routing and Remote Access Service (RRAS)权限提升漏洞 | Important |
| Windows | CVE-2026-20848 | Windows SMB Server权限提升漏洞 | Important |
| Windows | CVE-2026-20849 | Windows Kerberos权限提升漏洞 | Important |
| Windows | CVE-2026-20853 | Windows WalletService权限提升漏洞 | Important |
| Windows SDK | CVE-2026-21219 | Inbox COM Objects (Global Memory)远程代码执行漏洞 | Important |
| Windows | CVE-2026-20861 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20862 | Windows Management Services信息泄露漏洞 | Important |
| Windows | CVE-2026-20863 | Win32k权限提升漏洞 | Important |
| Windows | CVE-2026-20866 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20867 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20868 | Windows Routing and Remote Access Service (RRAS)远程代码执行漏洞 | Important |
| Windows | CVE-2026-20870 | Windows Win32 Kernel Subsystem权限提升漏洞 | Important |
| Windows | CVE-2026-20871 | Desktop Windows Manager权限提升漏洞 | Important |
| Windows | CVE-2026-20872 | NTLM Hash Disclosure欺骗漏洞 | Important |
| Windows | CVE-2026-20873 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20874 | Windows Management Services权限提升漏洞 | Important |
| Windows | CVE-2026-20929 | Windows HTTP.sys权限提升漏洞 | Important |
| Windows | CVE-2026-20931 | Windows Telephony Service权限提升漏洞 | Important |
| Windows | CVE-2026-20935 | Windows Virtualization-Based Security (VBS)信息泄露漏洞 | Important |
| Windows | CVE-2026-20936 | Windows NDIS信息泄露漏洞 | Important |
| Windows | CVE-2026-20937 | Windows File Explorer信息泄露漏洞 | Important |
| Windows | CVE-2026-20939 | Windows File Explorer信息泄露漏洞 | Important |
| Microsoft Office | CVE-2026-20948 | Microsoft Word远程代码执行漏洞 | Important |
| Microsoft Office | CVE-2026-20949 | Microsoft Excel安全功能绕过漏洞 | Important |
| Microsoft Office | CVE-2026-20950 | Microsoft Excel远程代码执行漏洞 | Important |
| Microsoft Office | CVE-2026-20958 | Microsoft SharePoint信息泄露漏洞 | Important |
| Windows | CVE-2026-20941 | Host Process for Windows Tasks权限提升漏洞 | Important |
| Azure | CVE-2026-21226 | Azure Core shared client library for Python远程代码执行漏洞 | Important |
END
声明
本安全公告仅用来描述可能存在的安全问题，绿盟科技不为此安全公告提供任何保证或承诺。由于传播、利用此安全公告所提供的信息而造成的任何直接或者间接的后果及损失，均由使用者本人负责，绿盟科技以及安全公告作者不为此承担任何责任。
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