CVE-2026-88203

Analyzed Analyzed - Analysis Complete

Untrusted Pointer Dereference in Microsoft Office PowerPoint

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Microsoft Corporation

Description

Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-15

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-88203

EUVD

EUVD-2026-100187

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	office_2021	*
microsoft	office_2021	*
microsoft	office_2024	*
microsoft	office_2024	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-822	The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is an untrusted pointer dereference in Microsoft Office PowerPoint. It allows an unauthorized attacker to disclose information over a network without needing user interaction.

Impact Analysis

An attacker could exploit this to access sensitive information stored or processed by PowerPoint. This may include documents, data, or other confidential content shared or edited in affected versions.

Compliance Impact

This vulnerability could lead to unauthorized information disclosure, potentially violating data protection requirements under GDPR, HIPAA, or other regulations. Organizations must address it to maintain compliance.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office PowerPoint and related components to address the untrusted pointer dereference issue.

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