Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized 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 Office LTSC for Mac 2021 | 16.0.1 – < 16.109.26051019 | 16.109.26051019 |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 – < 16.109.26051019 | 16.109.26051019 |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 – < 16.0.5552.1002 | 16.0.5552.1002 |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 – < 16.0.10417.20128 | 16.0.10417.20128 |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 – < 16.0.19725.20280 | 16.0.19725.20280 |
| Microsoft | Microsoft Word 2016 | 16.0.1 – < 16.0.5552.1000 | 16.0.5552.1000 |
Advisories 3
- MSRC-CVE-2026-40367 Microsoft Word Remote Code Execution Vulnerability Microsoft Security Response Center · May 20, 2026
- WID-SEC-2026-1490 Microsoft Office: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 12, 2026
- NCSC-2026-0144 Kwetsbaarheden verholpen in Microsoft Office NCSC-NL (Netherlands) · May 12, 2026
References
- Microsoft Word Remote Code Execution Vulnerability vendor-advisory patch