Use After Free Vulnerability in Microsoft Office
CVE-2025-27745

7.8HIGH

Key Information:

Vendor
Microsoft
Status
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc For Mac 2021
Microsoft Office Ltsc 2021
Vendor
CVE Published:
8 April 2025

Summary

A use after free vulnerability in Microsoft Office could allow an attacker to run arbitrary code on a targeted machine. Exploiting this issue may enable attackers to bypass security mechanisms and execute malicious code. This vulnerability arises from improper handling of memory in the application, which may be leveraged to manipulate the control flow of the application. It is essential for users of Microsoft Office to apply updates to their software promptly to mitigate potential risks associated with this vulnerability.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2016 32-bit Systems 16.0.0 < 16.0.5495.1002

Microsoft Office 2019 32-bit Systems 19.0.0

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

.