CVE-2026-88200

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Microsoft Office SharePoint

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-88200

EUVD

EUVD-2026-100180

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	to 16.0.20326.20190 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-270	The product does not properly manage privileges while it is switching between different contexts that have different privileges or spheres of control.

Attack-Flow Graph

Executive Summary

This vulnerability is a privilege context switching error in Microsoft Office SharePoint. An authorized attacker can exploit it over a network to elevate their privileges, gaining higher access than intended.

Impact Analysis

An attacker could gain elevated privileges, allowing them to access sensitive data, modify system configurations, or perform unauthorized actions within SharePoint. This could lead to data breaches or system compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements under GDPR and HIPAA. Organizations may face legal penalties, reputational damage, and loss of trust due to data exposure.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint Server as soon as possible to address the privilege context switching error.

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