Heap-Based Buffer Overflow in Microsoft Office Visio by Microsoft
CVE-2025-54907

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:
9 September 2025

What is CVE-2025-54907?

A heap-based buffer overflow in Microsoft Office Visio permits attackers to execute arbitrary code on affected systems by crafting malicious files. When these files are opened with vulnerable versions of Office Visio, it could lead to unauthorized actions, potentially compromising system integrity and user data. Users are encouraged to follow security updates and apply patches provided by Microsoft to mitigate the risks 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

.
CVE-2025-54907 : Heap-Based Buffer Overflow in Microsoft Office Visio by Microsoft