CVE-2026-69797: Microsoft Office PowerPoint 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
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
FAQ
How could an attacker exploit this vulnerability?
An attacker could send a specially crafted presentation to a user. The vulnerability could be exploited when the file is opened or rendered in a preview pane, potentially allowing the attacker to execute code in the user's context.
Is the Preview Pane an attack vector for this vulnerability?
Yes, the Preview Pane is an attack vector.
Affected Products (13)
Microsoft Office
- Microsoft Office 365 for Mac
- 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 PowerPoint 2016 (32-bit edition)
- Microsoft PowerPoint 2016 (64-bit edition)
Security Updates (1)
Acknowledgments
sangnt (@gnas0x0018) with Viettel Cyber Security
Revision History
- 2026-09-08: Information published.