Use After Free Vulnerability in Microsoft Office Visio
CVE-2025-53730

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:
12 August 2025

What is CVE-2025-53730?

A use after free vulnerability in Microsoft Office Visio can allow unauthorized attackers to execute arbitrary code locally. This occurs due to improper management of memory during object deallocation, potentially leading to execution of malicious code in the context of an affected application. Users are advised to apply security updates promptly to mitigate this risk.

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

.
CVE-2025-53730 : Use After Free Vulnerability in Microsoft Office Visio