Out-of-Bounds Read in Microsoft Office PowerPoint

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-72977

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	office_2019	*
microsoft	office_2019	*
microsoft	powerpoint	2016
microsoft	powerpoint	2016
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-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.
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in Microsoft Office PowerPoint. It allows an unauthorized attacker to access memory outside the intended range, potentially exposing sensitive information over a network.

Impact Analysis

An attacker could exploit this to read sensitive data from memory, such as passwords or confidential documents, without needing user interaction. This could lead to data breaches or unauthorized access to information.

Mitigation Strategies

Apply the latest security updates from Microsoft for PowerPoint immediately. Disable file sharing or network access to PowerPoint files until patched. Monitor network traffic for suspicious PowerPoint file transfers.

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