title: Microsoft SharePoint Remote Code Execution Vulnerability
description: <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from unsafe data input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p>
<p>Exploitation of this vulnerability requires that a user access a susceptible API on an affected version of SharePoint with specially-formatted input.</p>
<p>The security update addresses the vulnerability by correcting how SharePoint handles deserialization of untrusted data.</p>
problem types: Remote Code Execution
affected:
{
vendor: Microsoft
product: Microsoft SharePoint Enterprise Server 2016
cpes: cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
platforms: x64-based Systems
versions:
version: 16.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft SharePoint Enterprise Server 2013 Service Pack 1
cpes: cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:enterprise:*:*:*
platforms: x64-based Systems
versions:
version: 15.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft SharePoint Server 2019
cpes: cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 16.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft SharePoint Foundation 2013 Service Pack 1
cpes: cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 15.0.0, lessThan: publication, versionType: custom, status: affected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
baseSeverity: CRITICAL
baseScore: 9.9
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
]