CVE-2026-56195

Analyzed Analyzed - Analysis Complete

Microsoft Office Out-of-Bounds Read Vulnerability

Publication date: 2026-07-14

Last updated on: 2026-07-16

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-14

Last Modified

2026-07-16

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-56195

EUVD

EUVD-2026-44250

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	office_2019	*
microsoft	office_2019	*
microsoft	office_2016	*
microsoft	office_2016	*
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 access and disclose information stored locally on a system by exploiting this flaw.

Detection Guidance

This vulnerability is an out-of-bounds read in Microsoft Office that allows local information disclosure. Detection typically involves checking for unusual application behavior, crashes, or memory access violations in Microsoft Office processes. Use system monitoring tools like Windows Event Viewer to look for application errors or warnings related to Office applications.

Impact Analysis

An attacker could exploit this to read sensitive data from your system, such as files or memory contents, potentially leading to unauthorized information disclosure.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate compliance requirements under GDPR, HIPAA, or other regulations that mandate protection of sensitive information.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the out-of-bounds read vulnerability in Office. Monitor Microsoft's official update guide for patches and install them promptly.

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