CVE-2026-47294
Analyzed Analyzed - Analysis Complete
Deserialization Flaw in Microsoft Office SharePoint Permits Remote Code Execution

Publication date: 2026-06-01

Last updated on: 2026-06-03

Assigner: Microsoft Corporation

Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
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Meta Information
Published
2026-06-01
Last Modified
2026-06-03
Generated
2026-06-22
AI Q&A
2026-06-01
EPSS Evaluated
2026-06-20
NVD
CVE-2026-47294
EUVD
EUVD-2026-33745
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
microsoft sharepoint_server 2019
microsoft sharepoint_server 2016
microsoft sharepoint_server to 16.0.19725.20280 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability involves the deserialization of untrusted data in Microsoft Office SharePoint. It allows an authorized attacker to execute code remotely over a network by exploiting the way SharePoint processes serialized data.

Impact Analysis

The vulnerability can lead to remote code execution, meaning an attacker with authorization could run arbitrary code on the affected system over the network. This can result in full compromise of confidentiality, integrity, and availability of the system.

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