CVE-2026-26106
Received
Received - Intake
Improper Input Validation in SharePoint Enables Remote Code Execution
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
Improper input validation 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 | sharepoint_server | 2019 |
| microsoft | sharepoint_server | 2016 |
| microsoft | sharepoint_server | to 16.0.19725.20076 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is caused by improper input validation in Microsoft Office SharePoint. It allows an authorized attacker to execute code remotely over a network.
How can this vulnerability impact me? :
The vulnerability can lead to remote code execution, meaning an attacker with authorized access could run malicious code on the affected system. This can result in full compromise of confidentiality, integrity, and availability of the system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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