CVE-2026-26114
Received
Received - Intake
Deserialization Vulnerability in Microsoft SharePoint Enables Remote Code Execution
Publication date: 2026-03-10
Last updated on: 2026-03-13
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
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | sharepoint_server | 2019 |
| microsoft | sharepoint_server | 2016 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-502 | The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. |
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 how SharePoint processes serialized data.
How can this vulnerability impact me? :
The vulnerability can lead to remote code execution, meaning an attacker with authorized access could run arbitrary 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
Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70