Out-of-Bounds Read in Microsoft Word Enables Local Code Execution

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-13

Last Modified

2026-01-13

Generated

2026-07-06

AI Q&A

2026-01-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-20944

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	office_word	*

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 in Microsoft Office Word that allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

The vulnerability can allow an attacker to execute arbitrary code locally, potentially leading to full compromise of the affected system, including unauthorized access, data modification, or disruption of services.

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