CVE-2026-62827
Received Received - Intake

Improper Authentication in Microsoft Office SharePoint

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Microsoft Corporation

Description
Improper authentication in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-62827
EUVD
EUVD-2026-56293

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft office_sharepoint *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is an improper authentication issue 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 access to sensitive data or system functions, potentially leading to unauthorized modifications, data theft, or further network compromise.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating compliance requirements such as GDPR or HIPAA, which mandate strict access controls and data protection.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office SharePoint as soon as possible to address the improper authentication issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-62827. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart