Microsoft SharePoint Server Elevation of Privilege Vulnerability

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Summary

CVECVE-2023-21717
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-02-14 20:15:14 UTC
Updated2026-08-19 17:18:12 UTC
DescriptionMicrosoft SharePoint Server Elevation of Privilege Vulnerability

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.010950000 probability, percentile 0.629020000 (date 2026-08-19)

Problem Types: CWE-284 | NVD-CWE-noinfo | CWE-284 CWE-284: Improper Access Control

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Sharepoint Enterprise Server 2013 sp1 All All
Application Microsoft Sharepoint Enterprise Server 2016 All All All
Application Microsoft Sharepoint Foundation 2013 sp1 All All
Application Microsoft Sharepoint Server - All All All
Application Microsoft Sharepoint Server 2019 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1 affected 15.0.0 15.0.5529.1000 custom x64-based Systems
CNA Microsoft Microsoft SharePoint Enterprise Server 2016 affected 16.0.0 16.0.5383.1000 custom x64-based Systems
CNA Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1 affected 15.0.0 15.0.5529.1000 custom x64-based Systems
CNA Microsoft Microsoft SharePoint Server 2019 affected 16.0.0 16.0.10395.20001 custom x64-based Systems
CNA Microsoft Microsoft SharePoint Server Subscription Edition affected 16.0.0 16.0.15601.20478 custom x64-based Systems

References

ReferenceSourceLinkTags
Security Update Guide - Microsoft Security Response Center af854a3a-2127-422b-91ae-364da2661108 msrc.microsoft.com Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 110427 Microsoft SharePoint Server and Foundation Update for February 2023

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