CVE-2026-88150

Analyzed Analyzed - Analysis Complete

Use of Uninitialized Resource in Microsoft Office Word Allows Code Execution

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Microsoft Corporation

Description

Use of uninitialized resource in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-15

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-88150

EUVD

EUVD-2026-99725

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
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-908	The product uses or accesses a resource that has not been initialized.

Attack-Flow Graph

Executive Summary

This vulnerability involves the use of an uninitialized resource in Microsoft Office Word. An attacker could exploit this to execute arbitrary code remotely without authentication.

Impact Analysis

An attacker could gain control of your system by exploiting this flaw, potentially stealing data, installing malware, or disrupting operations. It requires user interaction like opening a malicious file.

Compliance Impact

This vulnerability allows remote code execution via uninitialized resources in Microsoft Office Word, which could lead to unauthorized access to sensitive data. Such access may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Office products as soon as they become available to patch the uninitialized resource vulnerability.

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