CVE-2026-45485

Analyzed Analyzed - Analysis Complete

Microsoft Office Out-of-Bounds Read Vulnerability

Publication date: 2026-06-09

Last updated on: 2026-06-19

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-09

Last Modified

2026-06-19

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-45485

EUVD

EUVD-2026-35653

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	2019
microsoft	sharepoint_server	2016
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	office_2019	*
microsoft	office_2019	*
microsoft	office_2016	*
microsoft	office_2016	*
microsoft	sharepoint_server	to 16.0.19725.20384 (exc)
microsoft	microsoft_365	*
microsoft	office_2021	*
microsoft	office_2021	*
microsoft	office_2021	*
microsoft	office_2024	*
microsoft	office_2024	*
microsoft	office_2024	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in Microsoft Office. It allows an unauthorized attacker to read data outside the intended memory boundaries, which can lead to the disclosure of information on the local system.

Impact Analysis

The impact of this vulnerability is information disclosure. An attacker exploiting this flaw could gain access to sensitive information stored in memory on the local machine without proper authorization.

Compliance Impact

This vulnerability allows an unauthorized attacker to disclose information locally due to an out-of-bounds read in Microsoft Office.

Such information disclosure could potentially impact compliance with data protection regulations like GDPR and HIPAA, which require safeguarding sensitive information from unauthorized access.

However, specific details on how this vulnerability affects compliance with these standards are not provided.

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