CVE-2025-47171

Microsoft Outlook Remote Code Execution Vulnerability

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

Affected

Microsoft · Microsoft 365 Apps for Enterprise · Microsoft Office 2019 · Microsoft Office LTSC 2021 · Microsoft Office LTSC 2024 · Microsoft Outlook 2016

CVSS v3.1 MICROSOFT

6.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS

1.68% chance of exploitation in the next 30 days, 77th percentile

Published

2025-06-10

Updated

2026-02-26

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/52356

Security advisories

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47171

References

• CVE Record
• NVD entry