CVE-2026-45457

Analyzed Analyzed - Analysis Complete

Untrusted Pointer Dereference in Microsoft Office Word

Publication date: 2026-06-09

Last updated on: 2026-06-19

Assigner: Microsoft Corporation

Description

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code 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-2026-45457

EUVD

EUVD-2026-35540

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	microsoft_365	*
microsoft	office_2021	*
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 untrusted pointer dereference in Microsoft Office Word that allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

The vulnerability can lead to remote code execution, enabling an attacker to run arbitrary code on your system with potentially high impact on confidentiality, integrity, and availability.

Mitigation Strategies

To mitigate this vulnerability, it is important to apply the security updates provided by Microsoft for Microsoft Office Word as soon as they become available.

Additionally, avoid opening untrusted or suspicious Word documents to reduce the risk of exploitation.

Hi! I’m here to help you understand CVE-2026-45457. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70