Microsoft Office Heap-Based Buffer Overflow Vulnerability Allowing Local Code Execution

A heap-based buffer overflow vulnerability has been identified in Microsoft Office. This vulnerability allows an unauthorized attacker to execute code locally. It affects multiple Office products, including Office 2016, Office 2019, Office 2021, Office LTSC 2021, Office LTSC 2024, and various versions of Office for Mac and Office for Android.

Impact

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

Remediation

Security updates are available for Microsoft Office 2016, Office 2019, Office 2021, and Microsoft 365 Apps for Enterprise. For Microsoft Office LTSC 2021 and 2024 for Mac, the security updates will be released as soon as possible. Instructions for downloading the security updates can be found on the Microsoft Office Update page.