CVE-2026-47294
Received
Received - Intake
Deserialization Flaw in Microsoft Office SharePoint Permits Remote Code Execution
Publication date: 2026-06-01
Last updated on: 2026-06-01
Assigner: Microsoft Corporation
Description
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | office_sharepoint | * |
Helpful Resources
Exploitability
CWE
KEV
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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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