Description
Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 – < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office 2019 | 19.0.0 – < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 – < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC 2024 | 16.0.0 – < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Outlook 2016 | 16.0.0.0 – < 16.0.5504.1000 | 16.0.5504.1000 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Microsoft Outlook - Remote Code Execution (RCE) EDB-52356 · remote · Jul 8, 2025
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- WID-SEC-2025-1276 Microsoft Office Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 17, 2025
- NCSC-2025-0189 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · Jun 10, 2025
- MSRC-CVE-2025-47171 Microsoft Outlook Remote Code Execution Vulnerability Microsoft Security Response Center · Jun 10, 2025
References
- Microsoft Outlook Remote Code Execution Vulnerability vendor-advisory patch