CVE-2026-70105
Received Received - Intake

Microsoft Office Word Information Disclosure Vulnerability

Vulnerability report for CVE-2026-70105, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Microsoft Corporation

Description

Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVSS Scores

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-21
AI Q&A
2026-08-21
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft office_word *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

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Executive Summary

This vulnerability involves improper input validation in Microsoft Office Word. An unauthorized attacker could exploit this to disclose information over a network without needing user interaction.

Detection Guidance

This vulnerability involves improper input validation in Microsoft Office Word, which could lead to information disclosure. Detection may require monitoring for unusual document processing activities or network traffic patterns associated with Word files. Check for unexpected data exfiltration or suspicious Word document interactions. No specific commands are provided in the available context.

Impact Analysis

An attacker could access sensitive information stored or processed by Microsoft Office Word. This may lead to data leaks, unauthorized access to documents, or further exploitation depending on the environment.

Compliance Impact

This vulnerability could lead to unauthorized disclosure of personal or sensitive data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance violations and penalties.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office Word to address the improper input validation issue. Monitor Microsoft's security advisories for patches and install them promptly.

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EPSS Chart