Microsoft Office Use-After-Free Vulnerability Allowing Local Code Execution

A use-after-free vulnerability has been identified in Microsoft Office, which allows an unauthorized attacker to execute code locally. This vulnerability affects multiple versions of Microsoft Office, including Office LTSC 2021, Microsoft 365 Apps for Enterprise, Office 2019, and Outlook and Word 2016. The vulnerability requires user interaction, as an attacker must send a malicious file and convince the user to open it.

Impact

Exploitation of this vulnerability could lead to unauthorized local code execution.

Remediation

Users can apply the security update available through the Microsoft Update Catalog. For Microsoft Office LTSC for Mac 2021 and 2024, the security update will be released as soon as possible, and customers will be notified via a revision to this CVE information.