CVE-2026-33822
Received Received - Intake

Out-of-Bounds Read in Microsoft Word Causes Local Information Disclosure

Vulnerability report for CVE-2026-33822, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-04-14

Last updated on: 2026-04-29

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-04-14
Last Modified
2026-04-29
Generated
2026-07-06
AI Q&A
2026-04-14
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
microsoft 365_apps *
microsoft 365_apps *
microsoft office_long_term_servicing_channel 2021
microsoft office_long_term_servicing_channel 2024

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

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Executive Summary

This vulnerability is an out-of-bounds read issue in Microsoft Office Word. It allows an unauthorized attacker to read information from memory locations outside the intended boundaries, which can lead to local information disclosure.

Impact Analysis

The impact of this vulnerability is that an attacker can locally disclose sensitive information from the affected system. Although it requires local access and user interaction, it can lead to information leakage and potentially compromise confidentiality.

Compliance Impact

This vulnerability allows an unauthorized attacker to disclose information locally due to an out-of-bounds read in Microsoft Office Word.

Such information disclosure could potentially impact compliance with data protection standards and regulations like GDPR and HIPAA, which require safeguarding sensitive information against unauthorized access.

However, specific details on how this vulnerability affects compliance with these standards are not provided in the available resources.

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