| CVE Number | Vulnerability | Product | Severity | Date |
|---|---|---|---|---|
| CVE-2026-40364 | Microsoft Word Remote Code Execution Vulnerability | Microsoft Office, Microsoft 365, Microsoft Word | Critical | 29-05-2026 |
Technical Information
An unauthorized attacker could exploit access of resource using incompatible type vulnerability in Microsoft Office Word to perform remote code execution by sending a specially crafted Word document and convincing a user to open it, resulting in arbitrary code execution on the local system.
Patch release date: May 12, 2026
Further information on this vulnerability is available at : CVE-2026-40364
Affected Software
Microsoft Office 2019 for 32-bit editions,Microsoft Office 2019 for 64-bit editions,
Microsoft 365 Apps for Enterprise for 32-bit Systems,
Microsoft 365 Apps for Enterprise for 64-bit Systems,
Microsoft Office LTSC for Mac 2021,
Microsoft Office LTSC 2021 for 64-bit editions,
Microsoft Office LTSC 2021 for 32-bit editions,
Microsoft Office LTSC 2024 for 32-bit editions,
Microsoft Office LTSC 2024 for 64-bit editions,
Microsoft Office LTSC for Mac 2024,
Microsoft Word 2016 (32-bit edition),
Microsoft Word 2016 (64-bit edition)