CVE-2026-32198

Received Received - Intake

Use-After-Free in Microsoft Excel Enables Local Code Execution

Publication date: 2026-04-14

Last updated on: 2026-04-28

Assigner: Microsoft Corporation

Description

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-14

Last Modified

2026-04-28

Generated

2026-07-06

AI Q&A

2026-04-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-32198

EUVD

EUVD-2026-22581

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	excel	2016
microsoft	excel	2016
microsoft	office_long_term_servicing_channel	2021
microsoft	office	2019
microsoft	office	2019
microsoft	office_long_term_servicing_channel	2024
microsoft	office_long_term_servicing_channel	2021
microsoft	office_long_term_servicing_channel	2021
microsoft	office_long_term_servicing_channel	2024
microsoft	office_long_term_servicing_channel	2024
microsoft	office_online_server	to 16.0.10417.20113 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Compliance Impact

The provided information does not specify how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

This vulnerability is a use-after-free issue in Microsoft Office Excel. It allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

An attacker exploiting this vulnerability can run malicious code on your computer with your user privileges. This can lead to complete compromise of confidentiality, integrity, and availability of your data and system.

Mitigation Strategies

To mitigate this vulnerability, you should apply the security updates provided by Microsoft for Microsoft Office Excel as soon as they are available.

Additionally, avoid opening untrusted Excel files and ensure that your system's security settings prompt for user interaction before executing potentially unsafe content.

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