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
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
2026-03-10
Last Modified
2026-03-13
Generated
2026-07-06
AI Q&A
2026-03-10
EPSS Evaluated
2026-07-05
NVD
CVE-2026-26114
EUVD
EUVD-2026-10681

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
microsoft sharepoint_server 2019
microsoft sharepoint_server 2016

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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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 how SharePoint processes serialized data.

Impact Analysis

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.

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