CVE-2026-33112 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	Sharepoint Server Sharepoint Server 2016 Sharepoint Server 2019

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33112

History

Tue, 12 May 2026 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 12 May 2026 17:30:00 +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 Server 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		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33112
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'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-05-12T16:59:08.182Z

Updated: 2026-05-12T19:20:44.979Z

Reserved: 2026-03-17T20:15:23.720Z

Link: CVE-2026-33112

Vulnrichment

Updated: 2026-05-12T19:20:38.149Z

NVD

Status : Received

Published: 2026-05-12T18:17:03.687

Modified: 2026-05-12T18:17:03.687

Link: CVE-2026-33112

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-05-12T18:45:05Z

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