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CVE-2021-43876— Microsoft SharePoint Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Microsoft SharePoint Enterprise Server 2016
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft SharePoint是美国微软（Microsoft）公司的一套企业业务协作平台。该平台用于对业务信息进行整合，并能够共享工作、与他人协同工作、组织项目和工作组、搜索人员和信息。 Microsoft Office SharePoint 存在安全漏洞，攻击者可利用该漏洞造成权限提升。

CVSS 8.8 · High EPSS 1.92% · P79
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I. Basic Information for CVE-2021-43876

Vulnerability Information
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Vulnerability Title
Microsoft SharePoint Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft SharePoint Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft SharePoint 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft SharePoint是美国微软（Microsoft）公司的一套企业业务协作平台。该平台用于对业务信息进行整合，并能够共享工作、与他人协同工作、组织项目和工作组、搜索人员和信息。 Microsoft Office SharePoint 存在安全漏洞，攻击者可利用该漏洞造成权限提升。
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 Microsoft SharePoint Enterprise Server 2016 16.0.0 ~ 16.0.5254.1000 cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.0 ~ 15.0.5407.1000 cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:enterprise:*:*:*
Microsoft Microsoft SharePoint Server 2019 16.0.0 ~ 16.0.10381.20001 cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-43876

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III. Intelligence Information for CVE-2021-43876

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IV. Related Vulnerabilities

Same product: Microsoft SharePoint Enterprise Server 2016
Same vendor: Microsoft

V. Comments for CVE-2021-43876

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