Use After Free Vulnerability in Microsoft Office by Microsoft
CVE-2025-49699

7HIGH

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 July 2025

What is CVE-2025-49699?

A use after free vulnerability in Microsoft Office could enable an unauthorized attacker to execute arbitrary code locally. This security flaw may allow the attacker to gain access to sensitive information or compromise system integrity when users open specially crafted documents. Users are advised to apply relevant updates to mitigate the potential impact of 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
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-49699 : Use After Free Vulnerability in Microsoft Office by Microsoft