CVE-2026-97749

Analyzed Analyzed - Analysis Complete

Double Free in Microsoft Office Outlook Allows Code Execution

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Microsoft Corporation

Description

Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code 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-2026-97749

EUVD

EUVD-2026-99803

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-415	The product calls free() twice on the same memory address.

Attack-Flow Graph

Executive Summary

This vulnerability is a double free issue in Microsoft Office Outlook. A double free occurs when a program frees the same memory location twice, which can lead to memory corruption and allow an attacker to execute arbitrary code remotely over a network.

Impact Analysis

An attacker could exploit this to run malicious code on your system, potentially stealing data, installing malware, or taking control of your device without needing physical access or user interaction.

Compliance Impact

This vulnerability allows remote code execution, which could lead to unauthorized access to sensitive data. This may violate GDPR's data protection requirements and HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft for affected Office products immediately to patch the double free vulnerability in Outlook.

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