Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
History

Wed, 27 May 2026 18:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

Tue, 26 May 2026 11:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 23 May 2026 04:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft sharepoint Enterprise Server 2016
Microsoft sharepoint Server Subscription Edition
Vendors & Products Microsoft sharepoint Enterprise Server 2016
Microsoft sharepoint Server Subscription Edition

Fri, 22 May 2026 22:30:00 +0000

Type Values Removed Values Added
Description Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Title Microsoft SharePoint Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft sharepoint Server
Microsoft sharepoint Server 2016
Microsoft sharepoint Server 2019
Weaknesses CWE-502
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-05-22T22:04:33.517Z

Updated: 2026-06-02T23:17:28.808Z

Reserved: 2026-05-12T20:33:35.158Z

Link: CVE-2026-45659

cve-icon Vulnrichment

Updated: 2026-05-26T10:54:30.831Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-22T23:16:56.273

Modified: 2026-05-27T18:32:54.337

Link: CVE-2026-45659

cve-icon Redhat

No data.