CVE-2026-56164

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Published Jul 14, 2026 CVSS 3.1 · 5.3 Medium EPSS 27.3% KEV · Listed
Description
Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-07-14T00:00:00+00:00', 'dueDate': '2026-07-17T00:00:00+00:00'}

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
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:35 PM
Reserved
Jun 19, 2026, 1:53 PM
Status
Analyzed
Published
Jul 14, 2026, 5:17 PM
Modified
Jul 14, 2026, 9:10 PM