Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

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Vendors Products
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Sharepoint Server Subscribe
Sharepoint Server 2016 Subscribe
Sharepoint Server 2019 Subscribe
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 11 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
Description Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Title Microsoft SharePoint Server Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
Weaknesses CWE-306
CPEs cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft sharepoint Server
Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-11T18:51:50.239Z

Reserved: 2026-07-20T20:25:40.977Z

Link: CVE-2026-64921

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-11T17:18:53.463

Modified: 2026-08-11T18:53:42.910

Link: CVE-2026-64921

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses