CVE-2026-70246

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Microsoft Office SharePoint

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-15

EPSS Evaluated

2026-10-18

NVD

CVE-2026-70246

EUVD

EUVD-2026-100170

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-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability is an incorrect authorization issue in Microsoft Office SharePoint. It allows an attacker with existing authorization to escalate their privileges over a network.

Impact Analysis

An attacker could gain higher access levels than intended, potentially allowing them to view, modify, or delete sensitive data, or perform unauthorized actions within SharePoint.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint as soon as possible to address the incorrect authorization issue.

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