CVE-2026-69722: Microsoft Office Word Remote Code Execution Vulnerability
Overview
- Severity
- High (CVSS 8.8)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Category
- Remote Code Execution
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Less Likely
- Patch Tuesday
- 2026-Sep
- Released
- 2026-09-08
Description
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
FAQ
How could an attacker exploit this vulnerability?
An attacker could convince a user to open a specially crafted document and interact with it in an affected application. Successful exploitation could allow the attacker to execute code on the affected system.
Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
Are the updates for the Microsoft Office LTSC for Mac currently available?
The security update for Microsoft Office LTSC for Mac 2021 and 2024 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.
Affected Products (13)
Microsoft Office
- Microsoft Office 2019 for 32-bit editions
- Microsoft Office 2019 for 64-bit editions
- Microsoft 365 Apps for Enterprise for 32-bit Systems
- Microsoft 365 Apps for Enterprise for 64-bit Systems
- Microsoft Office LTSC for Mac 2021
- Microsoft Office LTSC 2021 for 64-bit editions
- Microsoft Office LTSC 2021 for 32-bit editions
- Microsoft Office LTSC 2024 for 32-bit editions
- Microsoft Office LTSC 2024 for 64-bit editions
- Microsoft Office LTSC for Mac 2024
- Microsoft Word 2016 (32-bit edition)
- Microsoft Word 2016 (64-bit edition)
- Microsoft Office 365 for Mac
Security Updates (1)
Acknowledgments
0ccbbf129444eb66344ccafb92b00df4, <a href="https://www.linkedin.com/in/boolgombear/">Minjea Park</a>, Jmini
Revision History
- 2026-09-08: Information published.