CVE-2026-56164 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is in the KEV database since today.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Microsoft	Sharepoint Server Sharepoint Server 2016 Sharepoint Server 2019

No data.

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56164

History

Tue, 14 Jul 2026 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		kev `{'dateAdded': '2026-07-14T00:00:00+00:00', 'dueDate': '2026-07-17T00:00:00+00:00'}`

Tue, 14 Jul 2026 17:15:00 +0000

Type	Values Removed	Values Added
Description		Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized 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		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56164
Metrics		cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-07-14T17:05:12.313Z

Updated: 2026-07-14T19:37:20.775Z

Reserved: 2026-06-19T13:53:31.988Z

Link: CVE-2026-56164

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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