Heap-Based Buffer Overflow in Microsoft Office Word Affects Microsoft
CVE-2025-47169

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Server 2019
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Vendor
CVE Published:
10 June 2025

What is CVE-2025-47169?

A heap-based buffer overflow vulnerability in Microsoft Office Word can be exploited by an unauthorized attacker to execute arbitrary code on the local system. This could potentially allow attackers to gain control over the system, affect critical functions, and compromise sensitive data. Users are advised to update to the latest versions of Microsoft Office Word to mitigate 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

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CVE-2025-47169 : Heap-Based Buffer Overflow in Microsoft Office Word Affects Microsoft