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CVE Number Vulnerability Product Severity Date
CVE-2026-97016 Microsoft Office Outlook Remote Code Execution Vulnerability Microsoft Office, Microsoft 365 Critical 03-11-2026

Technical Information

An unauthenticated attacker can exploit a heap-based buffer overflow by sending a specially crafted email to a target user, achieving remote code execution when the email is displayed in the Reading Pane, without requiring authentication or any user interaction.

Patch release date: Oct 13, 2026
Further information on this vulnerability is available at : CVE-2026-97016

Affected Software

Microsoft Office LTSC 2021 for 64-bit editions,
Microsoft Office LTSC 2021 for 32-bit editions,
Microsoft Office LTSC 2024 for 64-bit editions,
Microsoft Office LTSC 2024 for 32-bit editions,
Microsoft 365 Apps for Enterprise for 64-bit Systems,
Microsoft 365 Apps for Enterprise for 32-bit Systems