CVE-2025-47171: Microsoft Outlook Remote Code Execution Vulnerability

Published Jun 10, 2025
·
Updated

Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code locally.

Other sources

Microsoft Outlook Remote Code Execution Vulnerability

Microsoft

Affected Software

15 affected componentsFixes available
Microsoft Outlook 2016
Microsoft Outlook 2016
Microsoft Office 2019 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Office LTSC 2024 for 32-bit editions
Microsoft Office LTSC 2024 for 64-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps
Microsoft Office=2019
Microsoft Office Long Term Servicing Channel=2021
Microsoft Office Long Term Servicing Channel=2024
Microsoft Outlook=2016

Event History

Jun 10, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Description
CVE Published
via MITRE·05:02 PM
Data Sourced
via MITRE·05:02 PM
DescriptionSeverity
Data Sourced
via NVD·05:23 PM
DescriptionSeverityWeaknessAffected Software
Jul 8, 2025
Exploit Published
12:00 AM
Jul 16, 2025
Known Exploited
10:45 AM

Frequently Asked Questions

1

What is the severity of CVE-2025-47171?

CVE-2025-47171 has a high severity rating due to its potential for remote code execution.

2

How do I fix CVE-2025-47171?

To fix CVE-2025-47171, install the security updates provided by Microsoft for affected versions of Outlook.

3

What products are affected by CVE-2025-47171?

CVE-2025-47171 affects several versions of Microsoft Outlook, including Outlook 2016, Office 2019, and Microsoft 365 Apps for enterprise.

4

Can CVE-2025-47171 be exploited remotely?

CVE-2025-47171 allows an attacker to execute code locally after proper authentication, making it a significant risk if exploited.

5

What type of vulnerability is CVE-2025-47171?

CVE-2025-47171 is categorized as a remote code execution vulnerability due to improper input validation in Microsoft Office Outlook.

Contact

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