CVE-2026-69797: CWE-416: Use After Free in Microsoft Microsoft 365 Apps for Enterprise
Description
CVE-2026-69797 is a use-after-free vulnerability in Microsoft Office PowerPoint within Microsoft 365 Apps for Enterprise. This flaw allows an unauthorized attacker to execute code remotely over a network. The vulnerability has a high severity with a CVSS score of 8.8. Microsoft has released an official fix for affected versions. No known exploits are reported in the wild at this time.
CVSS v3.1
Score 8.8high
Affected software
Microsoft
Microsoft 365 Apps for Enterprise
Microsoft
Microsoft Office 2019
Microsoft
Microsoft Office 365 for Mac
Microsoft
Microsoft Office LTSC 2021
Microsoft
Microsoft Office LTSC 2024
Microsoft
Microsoft Office LTSC for Mac 2021
Microsoft
Microsoft Office LTSC for Mac 2024
Microsoft
Microsoft PowerPoint 2016
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-416) involves a use-after-free condition in Microsoft Office PowerPoint, part of Microsoft 365 Apps for Enterprise. An attacker can exploit this flaw remotely to execute arbitrary code without privileges, requiring user interaction. The vulnerability affects multiple versions of Microsoft 365 Apps for Enterprise prior to specific fixed builds. Microsoft has published an official security update addressing this issue.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely, potentially leading to full compromise of the affected system. The vulnerability requires user interaction but no privileges or authentication. Confidentiality, integrity, and availability impacts are all rated high.
Mitigation Recommendations
Microsoft has released official security updates that address this vulnerability. Users and administrators should apply the provided patches promptly. Since this is a cloud service, Microsoft manages remediation for cloud-hosted instances. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69797 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T22:47:19.709Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69797","vendor":"Microsoft"}]
Threat ID: 6aa0452bacd9273b49fa9969
Added to database: 09/08/2026, 17:26:03 UTC
Last enriched: 10/16/2026, 21:34:18 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 30
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