Use After Free Vulnerability in Microsoft Office PowerPoint
CVE-2025-59238

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc 2021
Microsoft Office Ltsc 2024
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59238?

A vulnerability exists in Microsoft Office PowerPoint that can result in an unauthorized attacker being able to execute arbitrary code on a local system. This situation arises due to improper handling of memory after it has been freed, potentially allowing attackers to exploit this flaw through crafted files or documents. Organizations are urged to implement available patches and ensure their systems are secure against potential threats associated with this vulnerability.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2019 32-bit Systems 19.0.0

Microsoft Office LTSC 2021 x64-based Systems 16.0.1

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59238 : Use After Free Vulnerability in Microsoft Office PowerPoint